Home / Blocks & Cleats / 19mm Blocks / 19.84 19mm Double Block with Becket (10 Pack) 19.84 19mm Double Block with Becket (10 Pack) £165.96 19mm Ball Bearing Double with Becket 1000KG BL Information Our 19mm ball race blocks are designed to use used with ropes of 3-6mm. The complete range is made using a 316 stainless steel strap and solid rivet through a carbon fibre body and sheave. The hard wearing body and sheave are made in carbon fibre to be super hard wearing if a rope is miss led and runs over the side of the block. The 19mm ball race range is best suited to applications with fast running rope in light to high loads. The 19.84 double block has an increased breaking load of 1000KG and is great for 4:1 or 5:1 purchase systems to decrease the load on the rope when handling.