The Boa is a large and very strong offset HMS carabiner with a massive gate opening. The offset shape gives the Boa a lot of extra strength without compromising it's core function as a HMS, this means that not only can it handle standard HMS duties well - belaying, italian hitches - but it provides a lot of extra capacity and safety when it comes to rigging. It is one of the most popular carabiners in our range because it handles all tasks really well. The Boa uses a 7075 barrel with great push-in strength and has a non-binding gate that won't lock-up when the biner is tightened under load.