Features: Item Name:Extension Gevolume:15ml colors:9Colors lamp:UV&LED lamp How to use the Extension Gel? 1)washing hands, wiping nail with nail file and buffing sponge bar. 2)put on the nail form. 3)brush a thin layer primer gel,curing 2-3minutes with uv/led lamp. 4)use the nail pen to brush uv builder extend gel,curing 2-3 minutes with lamp. 5)adjust the nail shape with buffing sponge bar . 6)brush a layer color gel,curing 2-3 minutes with lamp. 6)brush a thin layer topcoat gel,curing 2-3 minutes with lamp. 7)pour off the cleaser plus on the cotton, Wipe nail surface with cotton to get perfect shining . 8)if you want to remove it,pour off the remover on the cotton and wipe nail.