Allen's plain bearing nylon sheet blocks have been adopted by the laser class as the block of choice for use on mainsheet systems. The sailing block be used in a wide range of applications.
Technical Specifications:
| 29mm | 38mm | |
| Length | 48mm | 66mm |
| Line Size | 8mm | 10mm |
| Breaking Load | 250kg | 300kg |
| Safe Working Load | 140kg | 155kg |
| Weight | 13g | 36g |


