Mammut Traditional D Carabiner
Here's what other sites are saying:
Mammut's Equal D Carabiner put a spin on the traditional D shaped carabiner by making theirs the same on both ends. The symmetrical body design encourages safe and proper load balancing without the need to shuffle it from one side to the other.
A Traditional D-shaped aluminum carabiner is part of the basic food groups for any climbing rack. The perfect item to bulk up on, as you can never have enough of them.