Describe Material: Acrylic Weight: 15mm: 13.9g; 20mm: 24.5g Size: Diameter: 15mm/0.59inch; 20mm/0.78inch 1. Made of high quality material, flexible, durable, and invisible. 2. With high viscosity and strong adsorption, it is not easy to fall off after pasting. This kind of double-sided with clear sticky points is not easy to leave glue marks after cleaning, and will not damage the of objects. 3. Wide application: you can stick anything you want to stick together Precautions. 1. As you know, different computers display different colors, and the actual color may be slightly different from the picture below. 2. 2. If you find it difficult to choose the size, you can contact me at any time, we will give you some suggestions, but this is just for your reference. 3. We can accept orders with mixed items, colors and sizes. Package includes 1set Clear Sticky Tack (100 capsules per sheet)