All orders include a prep kit. Prep kits come with everything you need for a perfect application, Nail glue, buffer pad, nail glue tabs, alcohol wipe and cuticle pusher -REUSABLE -With proper prep our Pressies can last 2-4 weeks, You can also use a e-file to clean the glue off after every use at its lowest setting, remember to be gentle when cleaning off the glue. Super sturdy. Does not bend. Please purchase a sizing kit if sizes are unknown. Made with hard gel.