Material: TPR Ability development: emotion, intellectual development, manual and brain use, grasping, other ability development, interactive toys, parent-child communication, interest development Color: 40 grid rubber bands, about 2500 pieces, 32 grid rubber bands, about 1500 pieces - 250G, 28 grid rubber bands, about 4400-650g, 28 grid rubber bands, about 4400 pieces, multiple accessories - 850g, 28 grid rubber bands, about 10,000 pieces, multiple accessories - 1KG, 36 Approximately 1,600 lattice rubber bands - 260g, 24 lattice rubber bands, approximately 1,500 18 lattice rubber bands - 300g, approximately 600 15 lattice rubber bands - 90g, approximately 3,500 54 lattice rubber bands and multiple accessories Specifications: 40 grid rainbow braider Applicable age: teenagers (7-14 years old)