Positioning Wedges 30 Degree 7 x 12 x 24 (Pair) Patient Chairs An unique buckle system makes The wetness indicator turns An unique buckle system makes it easy to tighten the straps which ensures a right fit and quick application Non Tilt * Easily assembled * Swivel ball bearing casters * 30 Wood grain laminated top (30 w x 15 d) * H base with brown painted finish * Infinite height adjustment from 27 to 42 * Supports up to 25 lbs Provides optimal 30 degree angle of incline for relieving pressure on hipbone and coccyx * Wedge is comfortable high density foam * Breathable low shear 4 way stretch cover with antimicrobial protection requires friction * Slip resistant bottom prevents sliding