Standard R188 stainless steel hybrid ceramic 10 ball bearing (Si3N4 ceramic balls), 3/16 inch thick 10 ball precision bearing with a polyurethane ring retention system.
Bearing dimensions are 1/2 inch (13mm) outer bore X 1/4 inch (6mm) inner bore x 3/16 inch (4.7mm) thick
Solid stainless steel body with a solid stainless steel button that has a stainless steel insert.
Weighing in at 5.1oz (144g)
Measuring at approximately 2 inches (51mm) in diameter and just over 1/2 inch (13mm) in thickness with the buttons in place.
Each spinner is serialized, has the production date and company signature.
