Bright colors. Bright colors are more attractive to kittens. Our spring toys for cats contain 4 bright colors of yellow, green, pink and blue, meeting the preferences of kittens. Kitten bouncing play training: plastic springs have great flexibility and can encourage cats to sports and exercise, which will give kittens a healthier and stronger body; If you want to exercise your cat, you can try it Safe and Bite-resistant Material: The interactive cat toy is made of plastic material, which is strong and durable, able to withstand the bite of a kitten, as well as its smooth and elastic appearance can ensure the safety of the cat during the game. Interactive cat toy. Any bouncing and twisting is achievable without damage. Our interactive cat toys randomly jump to keep your cat chasing, smashing and running. Sturdy and durable: These cat coil springs are made of high quality plastic. 1.8mm thick spring toy allows cats to bite freely.