• Size of each base: 40 x 40 cm, with 50 x 50 connection points. • Compatible with all standard large particle building block brands. • Made with safe and environmentally friendly ABS material. • Design that allows blocks to be held firmly, even when rotating the base. • Ideal for fostering creativity and the development of logical thinking skills in children. • Stable and durable, with twice the thickness of normal bases. • Includes 3 building bases in green, gray, and colorful colors. • Warning: Not suitable for children under 48 months.