The Baseline® Smedley Spring Adjustable Handle Hand Dynamometer with Carry Case for Precision Measurement of Hand, Grip and Forearm Strength with 0 to 220 lbs. of Force Range has been used by Medical Professionals, Doctors, Therapists and Rehab Clinics since 1974. The easy to use measuring grip meter has an adjustable handle that can fit any size hand and is convenient, comfortable and easy to use. Included with the Baseline Hand, Grip and Forearm Strength Dynomometer is a Protective Carrying Case which keeps the Dynamometer secure during travel and is great for everyday storage. The Baseline® Hand Dynamometer is an important tool designed to measure grip strength which is used to evaluate recovery from injuries as well as monitoring progress with rehabilitation and strength training programs. The Grip Testing Meter is calibrated in both pounds and kilograms making it perfect for both metric and US measuring systems. The Baseline® Smedley Spring Adjustable Handle Hand Dynamometer with Carry Case for Precision Measurement of Hand, Grip and Forearm Strength with 0 to 220 lbs. of Force Range has spring measurement technology, making the readings very accurate, consistent, and easy to read.