Spiky Point Massage Ball 7cm Roller Reflexology Hand Foot Body Stress Relief 5 Colors Hard Style Unique design, touch the body points Material: PVC Specifications: 7cm trigger point massage ball thorn, it is easy to use self-massage tool that can ease muscle tension, promote blood circulation, massage points effectively alleviate paralysis and feel tired, but can handle post-exercise muscle soreness, and small It can be described as pocket masseur