Features: 1. are made of zinc alloy and PP materials, durable, lightweight, strong impact-resistant, and strong shockproof body helps reduce damage caused by falling. 2. can develop children's curiosity, creativity, and hand-eye coordination. The bright colors are very attractive to young children. 3. Besides being fun, can help your child more easily cooperate and interact with other children. Help them develop fine motor skills and improve social skills 4. provide fun. Perfect as a birthday, Christmas, or Easter gift. Smartly sized, they're easy to grip and roll, ensuring they're perfect for little hands. Specification: Product Name: Product material: zinc alloy and PP Product size: about 7.5*2.8*3cm/2.95*1.1*1.18inch Product color: random Applicable: suitable for children Function: Cultivate children's curiosity, creativity, and hand-eye coordination Product List: *6 (random color)