<b>Size Reference:</b><br> XS: Fit for kitten the age of 20 weeks,about 6lbs<br> S: Fit for the age of 6 months, about 6-11lbs<br> M: Fit for adult size cats, about 11-15lbs<br> L: Fit for large breed cats, about 15-20lbs<br><br> <b>Apply on instruction (Better 2 people apply on)</b><br> <b>Step 1.</b>Test the size is proper or not: Try one cap on first without the glue. If it doesn't fit, trim the open and of each nail cap until they fit your cat claws snugly.<br> <b>Step 2.</b>Trimming cat nails and leave sufficient claw surface for the glue to adhere properly. (Kitten DO NOT need)<br> <b>Step 3.</b>Cut the glue pipe neck, and use the applicator to help you accurately drop glue into the nail cap. Filling 1/3 nail cap with glue, not too much or too little.(Please be careful and avoid dropping glue on your hands or your cat’s fur, if you do, remove it with use nail varnish remover or dispergator immediately. )<br> <b>Step 4.</b>Sliding the cap over the nail<br> <b>Step 5.</b>Waiting for 5 minutes before letting your cat go<br><br> <b>Warm Tips:</b><br> * For the first time wearing the claw nails, some cats will try to bite them off, please try to distract them, until they get used to their new claws. Please do not worry, this is a normal behavior.<br> *Healthy Cat nail shell will come off Every 4-8 weeks in normal situation. So you need prune the nails and replace nail sets every eight weeks. In addition, the cats' nails have scalability, it is recommended that you leaving a little gap out when stick the nails, so that cats nails have Activity space.<br>*If you need to remove the caps off, please use nail varnish remover or dispergator. <br>