Rocklock Twistlock Carabiner Color:GREY • Certification: ASTM F 2040

• Certification: ASTM F 2040

• Smartwool's first sock construction

Durable synthetic fabric

Easily-adjustable temperature control

A new injection-molded ladder lock torso adjustment makes it easy to dial in the fit

Rocklock Twistlock Carabiner Color:GREY • Certification: ASTM F 2040Black Diamond's largest locking carabiner, the RockLock is a one hand operable autolocking twistlock carabiner perfect for belaying, rappelling or anchors, and now features a hot forged lightweight construction, a redesigned spine for better handling, and a larger rope bearing surface for greater durability. We are unable to accept returns on load bearing climbing products. PRODUCT FEATURES: One hand operable Hot Forged for lighter weight construction