S = 6-Piece Set, M = 8-Piece Set, L = 16-Piece Set. Once your project is complete, please apply a layer of sealant to the surface of the bookmark to enhance its durability. To begin, peel off the protective film and pour the crystal drills into the tray. Next, use the diamond applicator pen to pick up some adhesive wax, use it to grasp a crystal drill, and place it onto the corresponding numbered spot on the bookmark. This product is designed specifically for adult crafting and relaxation use is recommended for individuals aged 18 and older. We invite you to get hands-on and experience the joy of creating these beautiful bookmarks yourself. The kit includes a wealth of accessories-such as small charms and pattern cards-allowing you to fully immerse yourself in the fun of Diy crafting. Multifunctional Use: These items serve not only as bookmarks to enhance your reading experience but can also be utilized as keychains, backpack charms, or wall decorations. Weight: 0.46 lbs.