Wheelchair Cushion 18x16x4x1.5 Ultra Wedge Gel Foam Wedge Mirrors Color:Grey Select Ear:Left Ear Color:Grey * A proven alternative to surgery for some patients * Traction forces are directed to the back of the head to prevent compression of the TMJ * Easy to read pressure gauge provides total control of the force at all times * Blow off valve limits the amount of force that can be applied * A cost effective option to continuous clinical care * Innovative design replicates clinical traction and promotes consistency of treatment * Positioning alternatives allow varying treatment options for the clinician * Patented pneumatic system ensures relable force accuracy and leak free performance * A portable treatment solution that increases patient compliance and satisfaction * Patented self adjusting neck wedges ensure a perfect fit * Patented pump design incorporates a simple click in place mechanisim * Quick and simple patient setup enables home traction without assistance * 1 year limited warranty The ultimate wedge for positioning slide control pressure reduction and comfort * Features: firm foundation fixed wedge shape high density foam incontinent proof inner cover cloth outer cover and safety straps *