Introducing an all new ISC RP037 Micro Pulley! Completely redesigned for 2022, the ISC RP037 Micro pulley was crafted with functionality and versatility in mind. It features a revised attachment eye that is wider and longer, allowing for greater compatibility with karabiners, and even allows rotation with many models. The pulley utilizes 6000 Series Aluminum and an anodized wheel to offer the strength and quality that you come to expect from any ISC product.