These Gear for magic bullet /Mini magic bullet /Baby bullet/Party bullet This set is 4pcs Motor Gear and 4pcs blade rubber Gear The Dia.of Plastic motor gear is 3.2cm ,Height is 1.2cm/The Dia of blade rubber gear is 2.7cm Height is 1.1cm This gear can't fit the nutribullet series This is non-original part,but It is made exactly fit for Magic Bullet/Mini magic bullet /Baby bullet/Party bullet These gear for magic bullet/Baby bullet /Mini magic bullet/Party Bullet. 1 pack inculde:4pcs Motor Gear and 4pcs Cross blade gear or milling Gear.