Unique Apparatus Reproduces The Movements Of Students’ Own Muscles

By using this interactive model, students better understand the physics behind how muscles work to create movement. Velcro straps secure the apparatus to the student’s upper and lower arm. By straightening and bending their arm, the model mimics the opposing contractions and relaxations of their own biceps and triceps. The “bones” are constructed of durable plastic, while the “muscles” are composed of a tough, elastic material. It comes with instructions. Size: measures 8" from upper arm to elbow, 8 1/2 " from elbow to fingertips.