This Gridfinity Bearing holder fits in a 1x2 space and holds up to 12 608ZZ bearings. The bearings fit snugly in place for easy transport.
There are two versions in this bundle, a 3u version and a 6u version that's stackable.
Check out my other models for a different version that holds 15 bearings but doesn't hold them in place.
Based on the Gridfinity organization system by Zach Freedman