Non Universal Nuts – Color Tree edition – offer a functional and aesthetic upgrade for quad roller skates, replacing conventional axle nuts with eye-catching, protective covers. Designed to fit most quad wheels with a diameter above 59 mm, they not only enhance the visual appeal but also serve practical purposes. By shielding the bearings from dust and debris—especially on indoor wooden floors—they help reduce wear and extend component life. Their secure fit also acts as a mild deterrent against unauthorized tampering. Easy to install by clipping onto existing wheel nuts, they come in four distinct designs, letting skaters personalize their setup with style and simplicity.