The 3D Printed YJYOYO Shims can be used to adjust the gap of their 3D Printed yoyos. These thin pieces of plastic sit between the bearing and the bearing seat to increase the gap width by a very small amount. You can use one or multiple to achieve the desired gap width.

Due to how thin these parts are, they are relatively fragile. Be careful not to overtighten once installed as they may break with added pressure.