These D shape chain connector combine safety, rust and high load. These looks is perfect for carabiner, hammock, camping, swing set, shade and other Indoor and outdoor equipment. Premium-grade quick links for chain/rope, cable connections, threaded-nut closure for added security. Features - Color: Silver. - Material: Stainless steel. - Size: 7.50 x 3.43 x 1.50cm/ 2.95 x 1.35 x 0.59 inch. - No rust when use damp environment or fresh water. Lightweight, easy to carry and use. - This safety chain hook is equipped with a threaded end and nut to provide enhanced security when connecting your safety chains to your trailer hitch. - Unique design and reinforced stainless steel material for improved load carrying capacity. - Professional and practical design with beautiful appearance, easy to carry and use. - And the extremely smooth threads are very convenient for installation and disassembly even if it is closed for a long time. Package list: 5 x connection rings