ThermoActive Ankle Support Oxygen Masks Easy to read accurate instrument offers versatility Wall Transformers Easy to read accurate instrument offers versatility for measuring large and small joints * Features includes: 4X magnifying lens to read the dual 180 degree high resolution scale and 2 stainless steel arms extending 9 to 26 * Constructed of chromium plated brass * 360 degree arm rotation (both directions) * resistance swivel * Compact lightweight and portable * Smooth precision glide * Total extended length: 22 1 4 Shipping Carton Size: 9 L x 7 W x 5 H * Electrical Requirements: 100 240 V AC 50 60 Hz and a unique hand held pump that adjusts the level of compression * Fits circumference up to 12 just above the foot as is or up to 22 with extender straps that are included * Indications: Ankle and foot sprains plantar fasciitis Achilles tendonitis bursitis arch and heel pain a patented removable gel pack that can either be frozen or heated depending on the use