Package: Includes approx 1000 pcs plastic hooks, mix of 6 colors, each size 35mmx15mm (1.4"x0.5"), thickness approx 4mm/0.15" Plastic hooks chain links will connect your kids to a variety of early math skills, build sorting, patterning, counting skills, and more. Enhance creative play to make necklaces, snakes or other designs With no sharp edges and harmless plastic material, the chain links are safe for children and a great addition to your child's bedroom and playroom. Pliable links are easy for young children to connect and separate Durable Material: The colorful c-links are made of high quality durable plastic, non-toxic that are safe for pets and people. The interlocking c-shaped plastic chain toy links allow quick connection/disconnection without tools Amusing and Exciting Bird Toy: The chain links are lightweight and hang perfectly from the top or sides of your bird cage. Easily assemble DIY configurations (hanging toys, ladders, or bridges) to encourage natural foraging and climbing behaviors in birds, parrots, sugar gliders, and small pets Suwimut colorful plastic c-clips hooks chain links are a fantastic learning resource for parents and teachers. Pliable and easy to use, children can learn their colors, patterning and sorting skills. Utilizing tangible object increases fine motor skills which are important for young children and students with special needs.