POCO DIVO Sydney Opera House Micro Block Building Set (520 pcs) Micro Blocks Architecture Series:Sydney Opera House in Sydney, Australia (520 pcs) Collect, Build and Display World Famous Building in your room; Wonderful recreation activity Include detailed step-by-step color instructions, Great details with assorted sizes and color pieces Non-toxic and Non-corrosive material, Smooth surface and Rounded corners for kids safe Foster imaginative and creative play; Induce cognitive skills; Develop better motor skills, hand eye coordination and spatial awareness