Ball can be inflated or deflated to adjust difficulty level
Terrific for non-invasive spot checks of the blood oxygen level
Plastic skinfold caliper is the inexpensive alternative for skinfold analysis
CanDo Board-on-Stone™ Balance Trainer - Platform and Stone:
Bubble Inclinometer Hand Flexion Ball can be inflated orThe Baseline Bubble Inclinometer precisely measures, tests and evaluates the range of motion of necks, hips, spines, elbows, knees, shoulders, ankles, wrists and MCP joints. To use, place the Inclinometer near the joint to be measured. As the joint gets manipulated, the range of motion displays (in degrees) directly on the dial. Baseline products have been the choice of leading Medical Professionals, Therapists, Doctors and Rehab Clinics for decades.