FRX15 Friction Ring - 15mm (19/32")Features: Efficient and light FRX Wichard thimbles are efficient, light, and reliable Very strong and can be used for heavy loads and semi-static lines FRX thimbles are designed to make your lines run smoothly with minimum wear They are hard anodized (50 microns) for a longer lifespan Applications:Mast-foot block, barber-hauler, inhauler, loop, thimble, lazy jack, running backstay, tackle, and moreSpecifications: Materials: Anodized aluminium Working load: (lb) 3520 / (kg) 1600 Weight: (lb) 0.026 / (g) 12 A: (inch) 25/64" / (mm) 10 B: (inch) 19/32" / (mm) 15 C: (inch) 19/32" / (mm) 15 D diameter: (inch) 1 3/8" / (mm) 35 Caption: Working Load (WL): For nautical applications Working Load Limit (WLL): For industrial applications only. The safety factor is 5 times the breaking load. WLL = Breaking load / 5 *Sold as an Individual Quick Guide (pdf)