Description: C Links: These children's linked toys include 600 hooks, which are sufficient to meet the demand Developing Toys: Counting and linking activity kits can stimulate children's early math skills. Such as counting, sorting, number perception and other motor skills. It can also train children' thinking, hand eye coordination and fine motor skills. Materials: links are made of high quality materials. Smooth surface, light weight, durable, washable. Flexible chain design makes it easy to hook and separate Multi Purpose : In addition to being a learning toy, it can also be used as a window decoration or a small pet mouse, parrot, bird cage link toy. Perfect gift: The perfect gift for your baby on birthday, Halloween, Children's Day and other holidays Size Chart: 4.3cmx1.7cm/1.69inchx0.67inch Package Includes: 600 Hooks Chain Links Note: Please allow slightly errors due to manual measurement and different monitors.