Double Lock Puzzle - Wooden Brain Teaser PuzzleSmooth, tightly locked construction Unlocks into four separate pieces Requires a precise sequence to release the first piece Remaining pieces follow once the first is freed Reassembly into the original shape provides a second challenge Correct moves produce smooth, effortless motion Vintage, elegant design in high quality handcrafted wood Makes a refined decorative accent for desk or coffee table Serves as an engaging conversation starter