Package include 500pcs hooks coins and 500pcs loop coins, sticky back dots diameter is 1 inch(25mm) Strong Adhesive and Longer Lasting: Both are made of nylon material and hot melt adhesive with high temperature resistant, very strong self adhesive Back Material: plastic film, easy to peel off, saving you time Easy to Use: Easy to peel off the coins from the film roll when you need their work, This hook loop coins can be attached to most of things, especially for smooth surfaces of paper, plastic, glass, leather, metal, etc. Application: adhere various items to boards, charts, folders and more. good for school projects, organization around the home, office and so on Features: Made of quality polyester and nylon material, they are tenacious and durable. Adhesiveness helps stick articles firmly. Designed for long term daily use. With touch fasteners, you dont have to battle with buttons or struggle with a jammed zipper. Ideal for hanging Educational items, posters, charts, signs and more. Specifications: Material: Polyester and Nylon Type: Self-Adhesive Dot Diameter: 2.5cm/ 1 inch Color: White Wide Application For School: classroom projects, schedules, name tags, posters, charts, signs and etc. For Office: note paper, schedules, plan, report, public documents. For Home: star poster, note paper for reminding, tags, like stick note paper on fridge to leave message or show weight loss/diet plan, stick paper on food container to mark and recognize foods. No trouble for find remote control. Package includes: 250x hooks coin 250 x loop coins NOTICE: These coins are perfect for smooth surfaces. Adhesive reaches maximum strength after 24 hours.