Tried and true, the ForeCast UD guides have been the industry standard frame for many years. From its brilliant frame design to its incredibly hard ring, these guides are perfect for the budget concerned who require the strength to deliver. Basing the frame material off of SS304 stainless steel and using either zirconium(PVD plated), zirconium, or hard aluminum-oxide rings, you can count on the ForeCast UD guides time after time. ForeCast UD guides were designed for any casting rod rated for the 10-25lb test line. Featured Highlights Pre Ground Foot Double Foot Design Braid Proof Superb Corrosion Resistance Recommended for 10-25lb. Test Line Frame: SS304 Stainless Steel Rings: Hard Aluminum Oxide, Zirconium(PVD Plated) Matching Tip Tops: ALPS PP Tip Top ForeCast P, P Flanged Tip Top Guide Size RING SIZE (MM OD) RING SIZE (MM ID) LENGTH (MM) LENGTH (IN) HEIGHT (MM) HEIGHT (IN) WEIGHT (GRAINS) WEIGHT (oz) 6 6 4.1 19.27 0.758 10.6 0.418 3.2 0.007 7 7 4.6 19.85 0.782 12.12 0.478 6.7 0.015 8 8 5.5 20.55 0.809 14.28 0.562 9.4 0.021 10 10 6.9 23.2 0.913 15.8 0.622 14.1 0.032 12 12 8.3 28.9 1.14 18 0.709 20.1 0.045 16 16 10.8 35.15 1.38 22.7 0.893 28.3 0.064 20 20 13.9 43.35 1.7 29.6 1.16 49.6 0.113