b' Mari JohnsonCARBO AIR BLOCKSThese smooth-running powerful performers make trimming easy, no matter how hard the wind blows. Carbo Air blocks are made of tough reinforced composite in a size and style to fit any system: singles, doubles, triples, quads, and quints; ratchets and fiddles; soft and hard attach; 18 - 75 mm. Perfect for main, jib and spinnaker sheets on dinghies and sportboats; control lines on boats of all sizes.Which Block Do I Need?High-strength, lightweight Lightweight, strong and reliable fiber-reinforced composite construction. Open Air block design eliminates unnecessary material to reduce weight.Stands up to sun, salt, and time Ball bearings, sheave, and sideplates are UV-stabilized.Low-friction efficiency for fast trim and release Free-running ball bearings roll on curved races, efficiently dispersing load for a higher strength block.Cam-Lock U-LockMaterialsFor properties see pages 249-250.DelrinCarbo composite:Shackle blocks lock in two directions or swivel to acetal resin,Sideplates, sheave keep line from twistingUV-stabilized:Ball bearingsCam-Lock or U-Lock allows shackle to be fixed or to swivel.DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.Delrin is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates. 17'