Features: Experience endlessly fun with our WindUp Mice, featuring a classical windup designs that requires no batteries, making it both safe and economical. Use selected plastic and plush, the realistic looking mice durable and safe for hours of play. Great for children aged 3 and over, the toy help develop fine motor skill while providing entertainment. Suitable for indoor or outdoor use, great for family entertainment and pet interaction, stimulating your cats natural hunting. With four random color delivery, these mice add surprise and excitement to any playtimes session. Specifications: Component: Plastic Product Dimension: Approx. 16cm/6.3inch Color: Random color delivery Package Includes: 1 Set Windup Mice Toy (4pieces) note: Please allow 1-2cm error due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.