This is an all aluminum spinner. The caps are aluminum and screw together for easy removal. This is designed to work with interconnecting blocks such as Legos.
The weight is 2 oz and the dimensions are 2.5" x 1.25".
We offer two different bearing choices. The stainless version are degreased in house. The full ceramic bearings come from the factory grease free. The ceramics offer smoother and quieter choices, but we find spin times to be equivalent between both bearings.
Manufactured and assembled in the Pacific Northwest, USA.