Features:- 3D metallic nano puzzle， educational toy for kids and adults above 14 years old.- The puzzle made by super-fine laser cutting technology， delicate design and elegant modeling.- To train children hands-on ability， problem-solving ability， exploring capability， and thinking transformation ability.- Brings a lot of fun to your daily life.- Easy to assemble， no external tool or fasteners is required.- Perfect educational puzzle games for DIY activity.- The assembled 3D model is perfect for desk decoration or collection.- Avoid possible injury from sharp edges of these metal sheet.- Size of the metal sheet: 11(L) x 11(W) cm.Type: Puzzle Jigsaw Age: 14 Years+ Material: MetalDesign Style: Construction Features: Educational， DIY Puzzle Style: 3D Puzzle， Jigsaw Puzzle Small Parts : Yes Washing : No Applicable gender: UnisexPackage Contents: 1 x 3D Metallic Nano Puzzle， 1 x Assembling Instruction