Product Description Traditional Ring Design – Compact and portable, designed for easy wear while retaining the playability of the Mechanic ring series.New Magnetic Structure – Features an all-new magnetic design that eliminates bearings and reduces magnets, while enhancing tactile feedback for a unique feel.Magnetic Modes –Single Magnet Mode – Uses one magnet for up to 15 cycles of segmented feedback.Multi-Magnet Mode – Uses two magnets for up to 30 cycles of segmented feedback.Customizable Size – Available in several sizes to accommodate different finger sizes. The first release offers the Large size, with more sizes to come soon. Specifications Brand: LAUTIE Bearing: 6704 Size: Large:inner diameter 20mm