This low-friction Carbo Air Block from Harken is lightweight, strong, reliable and affordable. Similar to Harken's Black Magic line, the small and compactsailing blockhas a very high working load for safe, easy trimming.
Technical Specifications:
| Sheave Diameter | 40mm |
| Length | 102mm |
| Weight | 122g |
| Shackle Pin Diameter | 4mm |
| Maximum Line Diameter | 6mm |
| Maximum Working Load | 136kg |
| Breaking Load | 272kg |


