Notpolish designed Crystal Sealer Gel to help all Nail Techs and Nail Enthusiast when placing large crystals-No loose sides here. Add a little product where the large crystals are placed to help seal and lock. So they don't pop off! Sealing will also help when doing daily activities no more getting caught in anything! Adding Crystal Sealer Gel to all your Bling sets will help everything stay into place and did we mention, easy to soak off!