High quality DIY coaster kit: NO CAULD AND GLUE INCLUDED.The coaster base and mosaic tiles are made of high-quality materials with smooth ,very colorful,safe to use and odorless,suitable for people who like DIY. Step-by-step instructions: Our mosaic craft kits come with detailed instructions,beginners can follow the instructions in the package to .Suitable for ,girls and all ages,which is interesting and easy to make. Simple steps: The process of making it is very simple.Remove all materials and then use glue to secure the mosaic pieces to the coasters.Wear gloves and sponge the excess caulk until it dries so the coaster is complete. Intersting crafts: If you are looking for a craft and want to create a finished product that is both beautiful and functional,then you love this kit.This kit not only allows you to feel the charm of handmade crafts, but also improves hands-on skills. Widely used and idea: The finished craft can be used as a coaster or elegant home decoration.This would be a meaningful gift with for friends,family and some very important people.