Note: This is only a Vibration back massager, not a Shiatsu Kneading massager. Do not buy this seat cushion if you are looking for a shiatsu massager with rolling balls. Vibration Massage - This massage cushion with 6 powerful vibrating massage motors target upper back, mid back, lower back, and thighs to help relieve your body.You can even select all 4 zones at once or individually to your liking. 5 programme modes and 3 variable vibration intensities brings you a customizable best massage as desired. Soothing Heat - Heated Chair pad with auto shut off target full back and seat, to radiating gentle warmth, to sooth and loosen your back. The seat massager is equipped with Overheating protection system and Auto shut off timer, dual-insurance for safe use. Memory Foam+ Cozy Plush- Back massage chair pad is made of cozy soft plush material and premium high-density memory foam, providing optimal softness and support, make your seat in ultimost comfort. Dual elastic straps & non-skipping bottom can secure the massage pad in place.