b'Ratchamatic BlocksAbout Carbo Air blocks: see feature page at beginning of this section.Use with 2631/2677 for a powerful 8:1 purchase. Nick Woviotis / Skylla Filmworks LLC / Sailing World 75 mmActualsize57 mmActual size2629 2630 26322685268626872634Sheave Shackle pin Max line Maximum Breaking Holdi ng powerLength Weight working load load w/180 wrapPart No. Description in mm in mm oz g in mm in mm lb kg lb kg 50 lb (23 kg) 57 mm 2629Triple/150 Cam-Matic*2 1/4574 1/1610314.94211/463/81015006803750170010:12630Triple/150 Cam-Matic/becket*2 1/4574 15/1612515.24311/463/81018008164500204110:12 1/4576 1/815618.352063/81018008164500204110:1 2632Triple/150 Cam-Matic/40 mm block/becket*1/4 2634Double2 1/4574 9/161167.220463/8107503401875 1/485110:1 75 mm 2685Triple/150 Cam-Matic*2 15/16756 3/16137318795/1687/161215006803750170015:12686Triple/150 Cam-Matic/becket*2 15/16756 1/216531.68965/1687/161218008164500204115:12687Triple/150 Cam-Matic/57 mm block/becket*2 15/16756 1/216534.79845/1687/161218008164500204115:1 *Maximum working loads and breaking loads for blocks based on cam strengths. 29'