Rock ExoticaMachined Pulley – High-Strength CNC-Milled Pulley for Climbing, Rescue & Rigging – Compact, Lightweight, and Snag-Free Design

I bought this to replace the DMM swivel on my arborist bridge. Unfortunately, to doesn't fit ANY of my carabiners. The holes are too small! One sort of goes in if I push really hard though. See the picture I've uploaded. All together pretty useless if I can't clip into it.

Everything great,I’m an arborist

Works great