Here's what other sites are saying:
The light weight and compact size of the Micro PMPs make them ideal for weight conscious trekking, remote rescue or confined space use, especially when reliability, performance and function are important. The wide base design maximizes the effectiveness of a prusik hitch while a unique sideplate formation allows the use of larger ropes in a compact pulley. An oversized bell-shaped top hole accepts 2 large rescue carabiners or multiple small carabiners and allows the carabiners to be rotated freely and completely even while closed. Solid sideplates help prevent foreign object access and reduce snagging. High efficiency sealed ball bearing reduces performance loss in large systems.
- Altrec Outdoors
3.7 ounces. | Dimensions: 3.75 x 2.55 x 1.12 in. | Sheave 1-3/8 x 1/2 in. | Material: Aluminum sideplates & sheave, Ball bearings. | Strength: 4,946 lbf - 22kN (3 Sigma). | Specifications: Meets NFPA "L" - Light Use 22kN. Accepts ropes up to 12.5mm. | Looking for a well-built, small pulley that has plenty of capacity and performs well? The SMC Micro PMP's (singles and doubles) are probably what you need. These are the smallest of three sizes of Prusik Minding Pulleys made by SMC, but don't let their small size cause you to question their performance. These pulleys are designed and manufactured to the same high quality standards as the full-sized PMPs. | The wide base design maximizes the effectiveness of a Prusik hitch while a unique side plate formation allows the use of larger ropes in a compact pulley. | An oversized bell-shaped top hole accepts a large rescue carabiner or multiple small carabiners. | The single can be rigged with 2 carabiners is a way that the 2nd carabiner serves
- Tahoe Mountain Sports