Dynatec has a high strength-to-weight ratio and is abrasion-resistant, making it an ideal material for creating lightweight quickdraws, that can withstand repeated use. It also absorbs less water than nylon. An important consideration for winter climbing.
The retainer at one end helps maintain the correct orientation of an attached carabiner, such as when used for clipping the rope into the quickdraw as a runner.
Certified as EN 566:2017 the dogbone is fully rated for climbing.
DMM is an awesome recreational climbing and mountaineering equipment company from Llanberis North Wales. Founded in 1981 they still make and test all their gear from home.