Function: Rotate tabletop toys to help decompression, hypnosis, thinking
Material: Main body: brass, 304 stainless steel
Bottom cover: imported POM
Features: Bearings can be removed and replaced
Size: Diameter: 30mm, height 25mm
Net weight: 130g
Bearing type: R188 stainless steel bearing 10 balls
Bearing size: 6.35×12.7×4.763mm