Steel Screw-Gate Big 'D' Carabiner
A strong carabiner that can still be used on steel cable. Very durable. This is really the only type carabiner you will need on your course. Eliminates mistakes by staff of putting aluminum carabiners on steel cables. We recommend this carabiner over all others, but again preference is yours. If the Big D's too much biner for you, try Big D's Little Brother.
1" Gate Opening
4-1/2" Over-all Length