SAFETY MATERIAL: Cat toys are made of plush and highly elastic springs, which is soft and safe, will not damage the cat's claws and teeth, not easy to damage or break, can be stretched up to two meters without deformation. FUR DESIGN: The cat toy with bell swings and bounces once the cat's paws touch it. The sound of touch can keep the cat alert, encourage him to engage in more interesting sports, and maintain agility and health. Crispy bells can easily attract cat's attention, stimulate the cat's predatory instinct. EASY TO INSTALL: Door hanging cat toys come with adhesive hooks and removable connecting buckles. Be flexibly hung on doors, seats or cat cages, and can also be attached to windows or other smooth surfaces. This cat toy can offer you and your cat hours of exercise and fun. PROMOTES HEALTHY ACTIVITIES: When you don't have time to play with your cat, these toys release the cat's energy, improve their agility, reduce obesity and keep fit. Your cat will love playing with them because they can bounce up and down. Helps interact with your kittens and build trust and companionship with your cats. MULTIPLE OCCASIONS: All you need to do is find a suitable place to hang it, suitable for kittens and adult cats. Cat toys can be hung on doors, windows, seats, cat cages, cat climbing structures, etc. If you have time, you can interact with your cat by holding one end of the rope.