Size: 10cm*1.5m, 20cm*1.5m, two sizes are available HIGH QUALITY TAPE: Waterproof Butyl Tape Provides a Contamination Free and Airtight Seal for RV, Window, Boat Seal, Glass and EPDM Rubber Roof Repairs. It doesn't melt unnecessarily. Save your money and time looking for high quality tape, it will be your best choice as no one offers such high quality tape. EASY TO INSTALL: Our tapes install easily, quickly and ideally on tight corners, textured, uneven and most jagged surfaces. You can also easily use it on unusual patterns. Installed with no gaps, moisture, steam, corrosive chemicals and other leaks can be reliably closed. The surface can be painted to make your installation area a seamless, clean and heavy duty waterproof work area. PURE MATERIAL: This butyl insulation is made of pure butyl rubber, we will not contain impure or inferior materials in our products, so it will not cause its performance degradation. Due to the use of pure material, it is a heavy duty tape that gives the user the best performance and heart satisfaction after use. With the best waterproof performance, it can effectively stop leakage. SATISFACTION GUARANTEE: We manufacture tapes from the finest butyl rubber. Feel free to try our shorts because we're confident you'll see results and be excited about your purchase. If you are dissatisfied with your purchase for any reason, neither will we. You are our priority.