Screwgate HMS karabiner which is well adapted to work with your belay device. It can be used comfortably with 2 ropes at a time, with little risk of the two strands overlapping each other during a fall. The wide end has room for 2 ropes sliding side by side and does not generate any friction on the sides of the karabiner when the rope is loaded or when a leaders fall is held.
Model: Beal Be Safe Carabiner Major Axis: 28 kN Minor Axis: 8 kN Open Gate: 8 kN Gate Opening: 21 mm Height: 99 mm Width: 69 mm Weight: 66 g