Perlot Copper Quad Fidget Spinner

*313inc's new quad design in the beautiful classic copper. It houses a standard 3/16 inch R188 bearing that is a pressed fit with our polyurethane ring retention system. The ring sits in a precision groove cut to hold a bearing in place allowing for the changing of the spinner bearing in a simple and clean way. There is no adhesive used as adhesives may damage a bearing itself. We designed our retention system for the convenience of effortless bearing changes while keeping the balance and concentricity of the spinner and bearing itself. *Copper quad spinner- 6.2 oz (177g)*This model is not tumbled or bead blasted. Parts are precision machined and as such have machining marks. The buttons are 3D machined.*Solid copper body with a solid copper Keturi button that has a stainless steel insert.*Stainless steel standard R188 Hybrid Ceramic - Si3N4 (1/2 inch (13mm) outer bore X 1/4 inch (6mm) inner bore x 3/16 inch (4.7mm) thick. 10 ball precision bearing*Measuring at approximately 2 inches (