The Freedom Grip Rail Knee Supports Braces sec increments Pulse Frequencies: 10 16 7136 sec increments Pulse Frequencies: 10 800 Hz in 10 Hz increments Treatment Duration: 1 30 min in 1 min increments Electrical Class: CLASS I Electrical Type: TYPE BF Regulatory Risk: Class IIb according to MDD 93 42 EEC UPC Code: 092237620397 Model Number: BP826 Freedom Grip Economy (To 250 Lbs Wt Cap ) * Fits any style home bed (just slide between the box spring and mattress) * Offers the safest and easiest way to get in and out of bed * The handle enables the elderly injured or people with disabilities to be independent * Helps to prevent falls and injuries and will ease the burden on the caregiver * Strong and stable providing all the support needed for safe transfers to walkers bedside commodes or wheelchairs * Heavy duty handle attaches to metal bed frames without tools * Model Choice: Use weight of patient * Fits mattresses up to 12