8mmx 13″ RIT 500 Thimble Prussic SterlingThe RIT (Right in Trees) Thimble prussic is made from Sterling’s high performing, heat resistant RIT 500. Great for grabbing your climbing line with your preferred hitch or used to adjust your positioning lanyard. The Thimble Prusik is made from 100% aramid sheeth and a nylon core with a metal thimble that can provide multiple options as an adjustable anchor or connection.