Precautions for wearing: Considering that some cats may not be used to wearing collars and slipped the collar, we design the buckle to be a little tight at the beginning of use, but don't worry, it become much easier after using it several times. Free your hands - When you come home after a busy day and don't have the energy to play with your pet , or if you need to focus on your things for a while and don't want to be by your cat, this automatic cat toy can free your hands! Just put it on the cats neck, turn it on, then the light beam go with them literally everywhere! What you need to do is laying down and watching them around like nuts! Absolutely fantastic for caretakers of active and high energy cats! For both long and short haired cats - Compared with interactive cat toys for indoor cats currently on the market, this cat toy is upgraded with lengthened light , even if the long hair 't block the light; The light tube can be adjusted up and down within range of 41to meet the requirements of light pointing to the floor, wall or higher position; and the light beam is soft, no harm to their eyes. Awesome toy for cats to play with! Working Mode - 2 light modes: normally on and flickering; You can select corresponding working mode according to your cat's interest; it work for 15 minutes under either of these 2 modes, then goes off automatically, and light on again after 1.5 hours; so it gives you time to recharge, or take it off of the cat/dog. You'll have more time to deal with your own affairs; cats no longer jump on the keyboard when you're typing; Nor they sniff around when you enjoy your food. Adjustable Collar - The cat collar has a great range of size adjustments from 240mm-340mm. It can be adjusted to fit all sizes of cat's neck and small dogs that like to chase also; and it is made of premium material, safe for pets. Rechargeable -This cat collar light toy is rechargeable. The working time is about 2-4 days after fully ; Tips on how to wear: Make sure to wear this on with the USB charging port side facing to the bottom. Style:Popular Suitable for Cats Animals Size:24-34cm Advantage:Duarable Colour:As Shown Material:Silicone+ Package Contents: 1 * Automatic Cat Toys 1 * Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.