Climbing Belay Devices Climbing Technology Groove. Multi-use belay plate in hot forged light alloy. - Equipped with two holes: the upper hole is intended to be hooked to the anchor, while the lower hole is used to connect the lanyard for abseiling - Can be used with a single rope, a half rope or a twin rope - Allows independent and self-locking belay of one or two seconds - Allows abseiling while keeping the ropes parallel and without them getting tangled - The two lower braking holes allow the ropes to pass through them for control descent speed during rappels. Climbing Belay Devices Climbing Technology Groove. Multi-use belay plate in hot forged light alloy. - Equipped with two holes: the upper hole is intended to be hooked to the anchor, while the lower hole is used to connect the lanyard for abseiling - Can be used with a single rope, a half rope or a twin rope - Allows independent and self-locking belay of one or two seconds - Allows abseiling while keeping the ropes parallel and without them getting tangled - The two lower braking holes allow the ropes to pass through them for control descent speed during rappels.