Small Sticker Circles: White sticky dots diameter is 0.39 inch. 500pcs Hook and 500pcs Loop (1 set = 1 loop and 1 hook , Total 500 sets; 1000pcs), Premium Nylon Adhesive Dots: The clear glue dot are made of nylon material and hot melt adhesive And long lasting with high temperature resistant, can work well even in wet environment, Work Well For Classroom: These small circle dots are a staple in classroom. I teach special education so we are always creating task boxes, file folders, and matching activities. Easy to Use: Hook and loop fastener dots have an adhesive backing that is easy to peel and set. No glue residue, no damage the surface of the object. Use on fabric, paper, plastic, rubber, metal, wood and other flat surfaces. Wide Applications: The adhesive circle dots are versatile, which is used to adhere various items to boards, charts, folders and so on ,much perfect for school specially educational classroom projects. The double sided sticky dots are also proper for organization in home, office, and more