304 Stainless steel safety chain links, 40 (100cm) in total length. 1/8 (3mm) in thickness. Each link ring is 1.18 in Outer length, 0.28 in inside windth. Good quality with a polished finish. Strong and durable, no sharp edges. 2 pcs include in package. Double-ended Closed Long Chain: Non-Detachable , are permanent. You can use it with hook, quick carabiner clip ,swivel buckle, d-shape shackle or expansion screw with ring. Or can tie two/three chain link together by quick link. No any carabiner included Easy to Use and Handle: the inside windth of each chain link is 0.28"(7 mm) . Makes it easy to attach heavy cord or strap. Can be used for connecting other clip or strap. As Safety cable lanyard tether, always used for loss prevention. Good for pad-locks,u-locks or disc-locks Brand NOBRAND Weight 1 lb Has written warranty No