NON-TOXIC MATERIALS-- These colorful cat spring toys are made of BPA-free high-quality plastic, safer for cats and kittens. It is light and durable. The thick 2.2mm spring toy allows cats to bite freely. 4 Vibrant Colors-- Cats like bright colors. Multiple and vibrant colors add to the fun. The cat plastic spring is composed of 4 classic colors of yellow, green, pink (some are red) and blue, which is very attractive to cats! Interactive Cat Toy-- The owner can throw this spring toy on the ground, it will bounce up and attract the cat's attention! A great way to create a strong bond with your pet, these cat springs keep them active, which is good for both mental and physical health. Soft and Elastic-- This cat spring toy is soft and super elastic! Light and bouncy. These bouncy toys will be irresistible to your cat. Promotes Agility and Exercise-- These interactive cat toys enrich our kitty coil springs to randomly jump around, let them chase, flap and run around, keep your cat happy.