Features: Relieve hand fatigue effortlessly with this 9 ball steel massage roller, featuring smooth rolling stainless steel beads to targets pressure points and relax tense muscles for users of smartphones or keyboards. steel ball and a 360 degree rotating head, this compact palm massager offer deeply, customizable relief while outperforming plastic alternatives in longevity and tactiles precisions. for office workers, gamers, and anyone experiencing repetitive strain from digital devices, this ergonomic tool addresses modern lifestyle induced hand discomfort. Use the portable hand therapies roller during work breaks, post workout recovery, or while traveling to maintain optimal hand mobility in any environment. appreciate the batteryfree, manual operations that delivers therapeutic massage without energies consumption or electronic waste. Specifications: Materials: Steel ball Size: 15x16cm Color: Light Blue, Light Pinkness, Light Purplee(optional) Package Includes: 1PC Roller Ball Massage Glove note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.