Summary This is a fidget spinner where you can use marbles as the weights on the outside. I used a pair of pliers to compress the marbles into the holes. Once in they will stay in. The marbles don't weigh as much as skate bearings so it feels lighter but it is a cool look. A nice addition to the collection. Print Settings Printer: Monoprice Select Mini Rafts: No Supports: No Resolution: .175 Infill: 50% How I Designed This Fusion 360