Glue Dots are a double sided, pressure-sensitive adhesive that is faster and safer than using hot glue guns, faster than foam tape products, and easier than dispenser-type adhesives. Bonds instantly, is child safe, and non-toxic. Great for hobbies, home, school, and office projects. Adhesive Sheets 3.5"x 2.5" For Vellum 10pc- Great for vellum, transparencies, skeleton leaves, glass, and acrylic embellishments. Strong, repositionable bond. Specially designed to keep the vellum paper transparent and neat without any liquid glues seeping through the porous material.