?High-quality material: This muscle massage stick is made of high-quality environmentally-friendly PVC material, with EVA handle and ergonomic handle. Ultra-portable and lightweight, super convenient for storage and travel. ?Design: Super large double ball design, with 580 large-particle PVC massage thorns, built-in solid stainless steel shaft core, 360° smooth rotation. Small size and easy to carry. ?Massage the whole body: Full body massage is available, suitable for neck, arms, legs, calves, thighs, shoulders, back, waist, feet; easy to roll; provide great relief and relaxation. ?Deep muscle massage: It can heat the deep muscles, unblock the blood, relieve muscle tension, relieve muscle pain, improve sleep quality, and make the body lines more beautiful. ?Size: The diameter of the sphere is 9 cm / 3.54', and the handle length is 12.5 cm / 4.92'. It is a good tool for self-care and a good gift for friends.