Amazing details and wonderful DIY experience. No glue or solder needed – Parts can be easily clipped from the metal sheets. Tweezers are the recommended tool for bending and twisting the connection tabs. Step by step image instruction to help with easy construction. Picture manual is gradual and easy to construct. Age: 14+ Difficulty level: 3 stars Final size: about 5.5. x 2.7 x 6.5 cm