Review on Arborist Climbers' Happybuy Flipline Carabiner by Ian Iknokinok

works well, very durable material and should last a few years before replacing. I'm an arborist, so I climb a lot and need reliable belay equipment. Depending on the type of tree you're climbing, this can slip a bit, but it's ideal for most. Make sure safety comes first when climbing. Money doesn't matter when you die!