This multipurpose 3-in-1 spinner can be taken apart and used three separate ways. This spinner is: (1) a classic spinner, fully assembled (2) a smaller spinner with the bearing removed (3) a powerful glass break.
The bearing is a ceramic hybrid bearing (.866in x .312in). This spinner comes with a top and bottom button (not compatible with your Comp Lyfe mod housing). Note: If you slide the bearing out too many times, simply use an adhesive glue to cement the bearing into the tool