Bed wedge pillow features an arc-shaped design with a lengthened and widened magic tape on the side, allowing for multiple height adjustments. The magic tape has strong adhesion, to eliminate slipping. You can choose a suitable angle for back support or use it as a leg elevation pillow to relieve discomfort and pressure in the legs and knees. 12-IN-1 MULTIFUNCTIONAL DESIGN: over 12 different combinations. In addition to the four common heights (10 ", 12 ", 18 "and 25"), it can be freely adjusted according to personal preferences. The pillow wedge is ideal for recovering from surgery, sleeping on your side and back, and can provide comfortable support while watching TV or reading. This pillow has not been used. Just set on a bed in the guest room.