Package Includes: you will get 5 pieces of stretchable cat spring toys with random colors and built in rats of different colors; The quantity is sufficient for your cat to play, and you can also share them with your friends who raise cats Safety Material: the cat spring ball is made of steel wire spring and plush material, firm and long lasting, can withstand the biting of the kitten, odorless and safe for the kitten, and its smooth and elastic appearance can ensure the safety of the cat when playing Suitable Size: the maximum diameter of the interactive caged rats in the spring cage is approx. 6.5 cm/ 2.56 inches and the height is approx. 8 cm/ 3.15 inches, elastic and lightweight, so the kitten can easily kick and chase the spring and enjoy the fun of playing Exquisite Design: the kitten toys adopt bright colors of blue, pink and purple, and have built in colorful and realistic rats, which can instantly attract the attention of kittens, make them excited and chase toys, consume energy in sports and keep healthy, and the toy features spherical design, which can better roll in the process of chasing and let cats play continuously Jumping and Playing Training for Kitten: the plastic spring has high flexibility, which can encourage the cat to exercise, so as to make the kitten have a healthier and stronger body; If you want your cat to do some sports, you can try this cat toy