Neat product. Usual DMM high quality build. Very useful in as a pulley and for reducing rope drag, although the design works best in conjunction with something that could keep the roller side in contact with the rope.
Sometimes the biner can get flipped around (which makes the pulley useless) unless the draw side is secured somehow - say with a sewn loop sling or quickdraw. Kinda pricey - get it on sale or use a coupon!
Would be nice if the biner were improved to function like the BD gridlock so that the orientation was maintained.
