Designed with precision engineering and exceptional durability in mind, the Harken 29mm 90-Degree Block (Part No. 352) features a sheave Ø of 29mm (1 1/8 in) and a maximum line Ø of 8mm (5/16 in). With a maximum working load of 150kg (330lb), this cost-effective Carbo Air block is the perfect companion for demanding trimming tasks.