10 inch precut. Jet black. Kinesiology therapeutic tape. Endorsed by Gold Medalist Kerri Walsh. For pain relief and support (not clinically proven for all applications.). Play harder. For Common Injuries (not clinically proven for all applications): Carpal tunnel, hamstring strain, wrist pain, runner's knee, neck strain, calf strain, shoulder pain, Achilles tendonitis, tennis elbow, plantar fasciitis, golfer's elbow, shin splints, rib pain, ankle sprain, gluteus pain, quad strain. Join the Community: kttape.com/forum; Facebook.com/kttape; Twitter.com/kttape. Watch the videos. kttape.com/instructions. Cotton or synthetic? Comfortable to Wear: Cotton (yes), Synthetic (yes); Days of Wear: Cotton (1-3), Synthetic (4-7); Level of Support: Cotton (good), Synthetic (best); Reflective Safety Print: Cotton (NA), Synthetic (yes); Protective Case: Cotton (NA), Synthetic (yes); Water Resistant: Cotton (NA), Synthetic (yes). www.kttape.com. CE listed. Warranties and remedies limited to product replacement cost. Made in China.