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Unlike animal horn, polycarbonate resin is non-porous and does not soften when exposed to water. Therefore the tool can be thoroughly cleaned with soap and water. This feature ensures a safe instrument that can be used with multiple clients. The shapes that can be achieved by carving animal horn is limited. Modern manufacturing methods allow our tools to achieve the desired shape. In other words, one does not have to force the tool to fit the body.
In comparison to jade or other minerals our instruments are lightweight to reduce fatique and will not shatter if accidently dropped. Should damage occur, any rough spots on the treatment edge can easily be buffed out with fine grit sandpaper.
Polycarbonate instruments are lightweight, less fatiguing to use, highly portable, and sensitive. Precision, injection-molded polycarbonate provides a substantial cost advantage over metallic tools. Ordinary soap and water provides thorough cleaning. Polycarbonate can not be cleaned in an autoclave or exposed to harsh solvents.
Compared to common objects like spoons or coins, our instruments provide a safe and consistent edge that is never sharp, always the desired shape, professional in appearance, and easy on the user's hand.
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The edge of the GOST-1 and GOST-2 provides a balance between comfort, sensitivity, and the ability to mobilize soft tissue. Multiple edges provide the shapes necessary to comfortably treat a variety of body contours. 
The treatment edge of the GOST-3 is rounded, comfortable, and safe for application of firm pressure into large muscle groups and deeper layers of soft tissue. And, when tissues are tender and unable to tolerate an aggressive approach, the more rounded edge provides a more comfortable introduction to gua sha.
The GOST-1 shapes match the anatomical contours of the hand, forearm, and elbow. In addition, the GOST-1 treats small contours of the neck, jaw, face, and ankle, and foot. Ideal for common problems like tennis elbow, trigger finger, plantar fasciitis, and localized treatment of myofascial trigger points.
The GOST-2 shapes match the anatomical contours of the shoulder, chest, upper arm, and petite lower extremities. Ideal for shoulder impingement, traditional gua sha applied to the back and spine, the IT Band, and more. A favorite of throwing athletes and the clinicians who treat them.
The GOST-3 shapes match the largest contours of the lower extremity including the glutes, hamstrings, and quadriceps. Textured perimeter ensures a secure grip. The GOST-3 is thicker in comparison to the GOST-1 and GOST-2 for greater rigidity. Combined with a rounded edge, these design features allow application of firm pressure to reach deeply into large muscle groups and soft tissues. Ideal for treating muscles involved in sciatica, as well as hamstring and quadriceps strains. 
GuaSha Professional Tools improve the clinician's effectiveness with an integrated handle. The ergonomic design protects and decreases stress on the hand and allows application of controlled firm pressure. Each GuaSha Professional Tool becomes an extension of the clinician's hand combining superior sensitivity with user comfort. GP Tools are designed for rigorous application and are available to professionals and individuals who desire a clinic quality instrument. $79.95 each, $299.95 for the set of four Professional Tools, and $364.95 for the four Professional Tools, GOST-3, Carrying Case, and Treatment Manual. 
This custom designed carrying case is made specifically for GuaSha Professional tools by Case Logic and features padded walls, carrying strap, zippered openings, embroidered logo, and compartments for each of the four GP Tools. Included with the Professional Set and Professional Kit packages. 
An additional pouch on the inside of the lid provides plenty room for the manual as well as any of the original tools including the GOST-3. Walls are soft and thickly padded to protect the tools and make transport easy. The padded dividers are secured by hook and loop tabs - this allows the dividers to be removed to customize the lower tray as needed. 
GP-1
The GP-1 shape matches small anatomical contours including the digits, radial and ulnar borders of the hand and wrist, Achilles tendon, and more. Ideal for mobilizing scar and soft tissue associated with injuries affecting the fingers including contracted IP joints secondary to scar, fracture, crush injury, volar plate avulsion, and prolonged edema. Apply over the dorsal aspect of tight PIP and DIP joints prior to PROM to increase circulation and tissue temperature and facilitate improved flexion.
GP-2
The GP-2 shapes match contours of the palm, forearm muscles, medial and lateral elbow, neck, ankle, foot, and more. Treat medial and lateral epicondylosis (tennis and golfer's elbow), Dequervains, and tendonosis affecting the FCR and FCU insertion at the wrist. Shapes match the hypothenar and thenar emminence of the palm. Mobilize mature scar to eliminate pain and improve flexibility following carpal tunnel release, Dupytren release, and more. 
GP-3
The GP-3 shapes target the upper arm, shoulder, calf musculature and more. A large rounded end works nicely for trigger points in larger muscle groups including the upper trapezius. An effective tool for eliminating myofascial pain and improving flexibility of the biceps and triceps, deltoids, and more. Using a more gentle approach, both the GP-3 and GP-4 (below) provide effective retrograde massage to decrease swelling in acute cases. 
GP-4
The larger edge on the GP-4 matches the muscular contours of the shoulder and chest. The GP-4 is the best gua sha tool for treating tight pectoralis muscles associated with shoulder impingement and thoracic outlet syndrome. Also treat larger triceps, and biceps, petite quadriceps, hamstrings and more. The GP-4 includes a flat shape that works well for raising petechiae along the spine and over myofascial trigger points affecting the rhomboids, levator, and other periscapular muscles.
GuaSha Professional tools direct force into the large, stable joints of the user's hand. Pressure is directed into the palm allowing finger tips to rest on the treatment blade to facilitate palpation. The ergonomic handle eliminates lateral pinch and protects the vulnerable thumb CMC joint. Finger joints rest in a stable position and do not hyperextend - a common scenario when using jar lids, coins and other traditional flat profile tools. 
The textured handle decreases muscle fatigue and provides a secure grip even when hands become slippery from massage cream. The treatment blade is solid while the handle is hollow. This feature keeps weight low to reduce fatigue, but more importantly, enhances and magnifies sensitivity.
