About this 3D model

OMG Surprise Hex Nut Fidget Spinner Customize number of faces type of weight: hex nut: 5/16" or M8 or loose ball bearing: 3/8", 1/2", 5/8" edge roundness (radius) Update 2017-04-11 added the option to use loose ball bearings: 3/8", 1/2", and 5/8" (tested with 5/8"); for a heavy, long spinning spinner Notes compact (fits in small hand) easy to install hardware with vise grips See my collection of all of my fidget spinner designs.