1. The set contains one roll each of hook tape and loop tape, with dimensions of 5m length x 20mm width. It can be cut to the desired size. 2. It can be used at temperatures between -20 and 80 Celsius, and for short periods at temperatures between -38 and 110 Celsius. 3. The industrial Velcro is made of durable nylon (polyamide), with a strong special adhesive (rubber) coated on the back, which is resistant to sun and rain. The hooks and loops are made of durable material to ensure good grip. It is break-down-resistant, rot-proof, wear-resistant, and can withstand more than 10,000 uses without significant wear. 4. It offers long-term and strong adhesion. After removal, it leaves no residue on surfaces. It can be used with good strength in high temperature, low temperature, humid and dry environments, reducing concerns about falling off. 5. It has a wide range of uses, such as for assembling and fastening objects, fly screens (the loop system can be firmly attached to the net or window net using strong glue or a stapler), clothing and textiles, crafts, decoration and DIY. The adhesives, hooks and loops are moisture and weather resistant, making them suitable for indoor and outdoor use. 6. If you are not satisfied with the Velcro, you can return it without providing a reason.