Foam Knee PadPads can be used to provide comfort, tension free starting position and find neutral alignment When used on equipment, the pad can be placed under the hip or pelvis to provide comfort or under the head for neutral alignment on the reformer Can be used to protect your knees and hands when on all fours and helps keep your body from sliding For Your Neck Support: Help find optimal ergonomic posture for all exercises and meditation performed on the back.