High Quality - Double rubber joint roller with high-quality ABS resin material, is smooth and solid, durable deformation. 2 Rollers Finger Joints Hand Massager Handheld Blood Circulation Tool. Easy to Use - Small and light, easy to carry. Take it out and use it with controllable strength. These handheld massage tools work well with essential oil, massage oil, or body lotion. For Everyone - The thumb massager is ergonomically designed and fits the hand perfectly, making it more comfortable to hold. Perfect for massaging yourself as well as using to massage others. The Hand Massager: Side B with massage Double Rubber, Side a applies pressure to Individual fingers stimulating blood flow while rolling out stiffness. The Finger Massager: Side A is steel massage balls with full 360-degree rotation that provide a rolling massage for face, hand, legs, shoulders, neck, lower back, or any part of the body experiencing muscular tension.