TheraBand Stretch Strap enables more effective static and contract-relax stretches while increasing range of motion and flexibility of muscles. Uses: Stretch your Gastrocnemius, Rectus Femoris, Soleus and Hamstring muscles. Used by dancers, gymnasts and other athletes to improve range of motion and flexibility. Features: Instruction booklet written by licensed physical therapist. Available in singles or packs of 12. Accompanied by Use and Safety Instructions. Languages Included (JP, KR, CN, DK, GR, DE, PT, IT, FI, NL, ES, FR, US). CE Mark.