Glue Clay: This glue clay is made of raw material with strong viscosity and it will not left marks. The glue clay looks crystal clear and beautiful. They can stick tightly to the diamond, but never leave a mark of glue on the diamond, which can keep your work clean and tidy.Good Cost Performance: You'll get these good quality painting glue clays at a very low cost. Our product quality is excellent and the price is low (no diamond pen included) .Suitable Size: Each diamond art painting glue clay is cut into the size of 0.8 x 0.8in / 2 x 2cm. You can take it out when you need to use it. Other glue clay can be still stored and it wont be metamorphic.Application: This glue clay is especially designed for DIY diamond art painting crafts, combined with painting sticky pen, which will improve your painting efficiency. If you like diamond art paintings, then you can have itNote: Please keep the glue clay away from children to avoid swallowing, or it will be dangerous. If you have any problem in the use of the product, please contact us in time, we will help you solve the trouble timely.