HOBBY MODEL KIT – Unassembled model packed in an envelope with easy to follow instructions. Ideal for ages 14 and up 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 SYDNEY OPERA HOUSE – 3 Sheet Model with a challenging difficulty level. Assembled Size: 3.90 x 2.65 x 1.95 inches FROM STEEL SHEETS TO 3D – Pop out the pieces and connect using tabs and holes. Includes illustrated instructions HIGHLY DETAILED ETCHED MODEL – Display your 3D model once completed - collect and build them all The Metal Earth models are amazingly detailed etched models that are fun and satisfying to assemble. Each model starts out as 4 inch square metal sheets and you simply pop out the pieces using wire cutters and follow the included directions to assemble your model. The Sydney Opera House is a multi-venue performing arts center in Sydney, New South Wales, Australia. The Opera House design is the creation of Danish Architect Jorn Utzon who took a particular interest in the works of American architect Frank Lloyd Wright. The model is 3.9x2.65x1.95 when built. Difficulty level: Challenging. No glue or solder needed.