AliMed® AliGel™ Cardiovascular Positioning Set combines positioners for patient care and pressure redistribution during supine procedures, especially cardiovascular surgery. With protection for high-risk areas such as the ulnar nerve and heels, and versatile Dome and Lateral Head Pads, this set is recommended for long procedures. 6-piece set.A. (1) Lateral Head Pad, 9"W x 10"L x 1"H B. (2) Ulnar Forearm Protectors, 13"W x 18"L C. (1) Dome Positioner, 6"W x 14"L x 3"H D. (2) Heel Cups, 3-1/4"W x 6"L x 1-3/4"HAliMed® AliGel™ Positioners remain an industry standard due to the pressure-relieving properties of a unique gel formula that mimics fatty tissue and moves with the patient to reduce shear and help prevent pressure injuries. Additionally, AliGel absorbs shock, stretches, and retains its shape better than less dense gel positioners. AliGel is made of 100% dry viscoelastic polymers and includes an 18-month warranty against manufacturing defects.