Mini Toolbox Top and Bottom with CasterCheck out our mini toolbox. These little boxes are all metal drawers and frame, ensuring durability for any workspace. Comes with swivel casters on the bottom and a handle on the side for easy mobility. Its good to have on your desk to store little things and keep your area organized. They come fully assemble with caster already on them. We 3D print the mounts under the toolbox for the caster to be mounted onto the box and a plate between both boxes