Simple Large pencil holder/orgainizer. Designed to be used with 8mm (5/16") bearing balls (eg https://www.amazon.com.au/Round-Bearing-Balls-8mm-50PCS/dp/B0B28PPXZ9/ref=sr_1_5?keywords=8mm%2Bbearing%2Bball&sr=8-5&th=1)
Body and Base snap together to sandwhich the bearing ring with balls between. Profile is set for .12mm layer heights for better quality look.
Supports are not required but I found producted a nice bottom to the base.