Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. In today's health care environment, accurate and objective data is required for reimbursable rehabilitation services, making the JAMAR? Hydraulic Hand Dynamometer an indispensable tool * Ideal for routine screening of grip strength and initial and ongoing evaluation of clients with hand trauma and dysfunction * Virtually leak-proof hydraulics and isometric design ensure accurate, reproducible results and years of reliable service * Built to last, a shock-resistant rubber cap protects the stainless-steel gauge and a wrist strap prevents accidental damage if dropped * Unit comes with carrying/ storage case and complete instructions *