XcelTrax Air Wlkr X Lge High Boot M 12.5+ W 13.5+ Innerspring Mattresses C ( 58 to 716 14283 C ( 58 to 716 Deg 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 Designed for ideal support and comfort following trauma or post operative procedure * The lightweight design and unique pre shaped ergonomic frame help to modify the level of pressure on the injury at both the malleoli and lower leg * The soft nylon foam liner has an integrated pump design making the pneumatic liner simple to inflate and adjust *