Plastic Material: Meridians brush is made of high quality plastic material, safe and eco friendly, moderate hardness, sturdy and stable, wear resistant. Multiple Applicable Parts: Suitable for back, lumbar spine, arms, hands, neck, cervical spine, legs, feet and other parts. Light and portable, perfect for home and travel use. Non Slip Design: Hand strap design, finger non slip grooves, no slippage during use, conform to ergonomic design, easy to hold and use, bring you convenience. Flexible And Durable: Flexible brush teeth, and the brush teeth are not deformed when they are bent at 90 degrees, not easy to break, has a long service life. Mellow Brush Teeth: Brush teeth are mellow and smooth and won't hurt the skin. Effectively massage the body, relieve soreness and fatigue, and make you feel comfortable.