30-1013 Size: 10" H x 20" W x 22" D Features: -Ideal positioning shapes for exercise therapy.-Used under the back, arm or leg of a patient for comfortable and functional positioning.-Provides the necessary leverage to promote an exercise regime; i.e. under the knee to enable weighted ankle lifts. Dimensions: -4" H x 20" W x 22" D.-6" H x 20" W x 22" D.-8" H x 20" W x 22" D.-10" H x 20" W x 22" D.-6" H x 24" W x 26" D.-8" H x 24" W x 26" D.-10" H x 24" W x 26" D.-12" H x 24" W x 26" D.