||Type of cat
||Kittens between ages 2 and 6 months who weigh up to 5 lbs. Some kittens may begin wearing nails at 3 months; most begin at 4 months. Nail caps should fit snugly. If a cap appears too large for a nail and fits loosely, do not attempt to glue it on.
||Cats ages 6 months and older who weigh 6 to 8 lbs. Some cats may outgrow the kitten size by 5 months, however. Small-boned adult cats often wear the small size. If your cat seems smaller than an average full-grown cat, choose small.
||Cats weighing 9 to 13 lbs. Most adult average-size cats wear medium.
||Cats weighing approximately 14 lbs. and up. Very large-boned and large-breed cats wear large. Maine Coons, for example, are very large cats and generally wear large.