Carabiners made from steel are durable and heavier than aluminum carabiners. They are favored for long-lasting toprope biners (although aluminum works fine as well). The pictured carabiner is mostly made of aluminum with a steel insert.
Carabiners made from steel are durable and heavier than aluminum carabiners. They are favored for long-lasting toprope biners (although aluminum works fine as well). The pictured carabiner is mostly made of aluminum with a steel insert.