The only tool combing myofascial massage surfaces and IASTM edge technology to completely treat myofascial pain, restrictions, and adhesions. Hard and durable nylon/glass composite material and a Unique 3D ergonomic grip design increases user tactile sensitivity while decreasing hand strain Use with LOTION for edge release therapy, treats a variety of conditions including tendonitis, scar tissue, cellulite, adhesions, fibrosis, muscle strain, myofascial pain. see wavetoolstherapy.com for instructional videos. Designed by Physical Therapists and Professional Athletes. Patent Pending, Finished by hand in Colorado.