Cat space ball cover to protect your cat's safety. - Product Name: Cat space ball cover - Function: Prevents biting during grooming, such as nail trimming - Size: XL I bought XL because my cat is 5.5kg, but the actual neck size is about 10cm in outer diameter and 9.5cm in inner diameter. It's too big for my cat, who has a slender neck, and it comes off. Therefore, it's suitable for cats with thicker necks or larger cats weighing 8kg or more. I have used it once for testing. It has been disinfected, but it has been stored at home in its original box. Please refrain from purchasing if you are sensitive to this. I am not currently considering lowering the price, so I will not be able to respond to comments asking for a discount (＞人＜;) Instant purchase without comments is welcome! #NailClipping #BitingPrevention #GroomingAid #Safety