1. High quality material 100% high quality material. The knot buckle is made of high quality stainless steel. Not only can good quality provide a safer guarantee of your life, but good materials can also extend the life of the product.Size: 49 * 27 mm Aperture: 0.8 cm2. Features The knot buckle is multifunctional to meet your different needs. With an arc transition, the edge wouldn't cut your hands. With this product you can knot faster and easier.3. Excellent performance The knot buckle offers stable performance and high reliability. Exquisite workmanship, stylish and generous appearance. You can buy them with confidence.4. Suitable for The knot buckle is suitable for travel, camping, etc. Light and small, easy to carry out and does not take up the space.5. Convenient Aluminum alloy guyline adjusters are compact and ultra-light and convenient to use. Use this buckle to quickly and tightly tie a tent guyline cord.