Size A Ball Bearings MR105

Size A Ball Bearings, also known as size MR105. Steel, ceramic and chrome ball bearings in a variety of designs including flat, concave (KK) and groove. These quality ball bearings are suitable for yo-yos, fidget spinners and many other toys and gadgets. Be sure to select the correct size for your application.

Size: 5 x 10 x 4mm