Description: There are features of intellectual development and interactive, so the toy puzzle is a perfect gift for your kids. The toy puzzle need to be assembled by yourself and is detachable, which can improve kids' concentration and hands-on ability. Made of high quality plastic material, this puzzle is eco-friendly and safe to use. The length of the product is about 13cm, the width of the product is about 12cm, and the height of product is about 12cm. It is round edge and can prevent children from being injured during the operation, so it is suitable for kids toy. Item Name: DIY Assembling Toy Material: Plastic Size Details: 13cm x 12cm x 12cm/5.12" x 4.72" x 4.72" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Product Principle: Inertia is an inherent property, whether it is a solid, liquid or gas, whether the object is moving or motionless, it has inertia. Elasticity refers to the property that an object deforms under the action of an external force, and when the external force is removed, it can restore its original size and shape. Any object is elastic. It can be deformed and restored, but some are invisible to the eye. Package Includes: 1 x DIY Assembling Toy