The new Black Diamond Oval Screwgate combines a time-tested symmetrical shape with a modern snag-free keylock design and a locking screwgate to create a versatile biner that’s worthy of any rack A new addition to the Oval family, this symmetrical biner riffs on the classic model, but incorporates a snag-free keylock design and adds the screwgate for locking functionality, making this an essential locking carabiner on your rack.