Shipper's Dilemma Y wood puzzle and brain teaser 25 pcs all shaped the same way will make a 5x5x5 cube Very diffiicult even though there are over 1200 ways to make the cube. 1 hour would be an excellent time to find your first cube The pieces will also make many other rectangular shapes and these challanges are included with your instructions Comes with base and cover so can be put way easily and safely.