This loose pack of 730 pieces offers a wide range of colors and structural parts, allowing for free assembly of models, buildings, or scenes, perfect for building block enthusiasts who want to expand their creative horizons. Its high compatibility and large capacity also make it suitable as a supplementary pack, providing more possibilities for DIY projects for children and adults. The parts are compatible with common micro brick systems, making it suitable for classroom teaching, craft activities, and creative thinking training. 730-piece loose pack for free building. Wide color range for creative projects. Perfect for expanding existing brick sets. Compatible with micro brick systems. Excellent for classrooms, creators, and hobbyists. Colors: White 730 pcs, Pink 730 pcs, Brown 730 pcs, Black 730 pcs, Red 730 pcs, Blue 730 pcs, Light Gray 730 pcs, Dark Gray 730 pcs, Light Green 730 pcs, Dark Green 730 pcs. Recommended age: Children (7-14 years old).