Experience independent luff tensioning with the Harken Small Boat Jib Furler Upper Swivel. This furler swivel allows separate adjustment from mast rake for precise sail control.
| Weight (g) | 74 g | 
| Weight (oz) | 2.6 oz | 
| Maximum working load (kg) | 227 kg | 
| Maximum working load (lb) | 500 lb | 
| Clevis pin Ø (mm) | 6.4 mm | 
| Clevis pin Ø (in) | 1/4 in | 
| Pin-to-pin length (mm) | 64 mm | 
| Pin-to-pin length (in) | 2 1/2 in | 
| Maximum luff wire Ø (mm) | 3 mm | 
| Maximum luff wire Ø (in) | 1/8 in | 
| Use with furling unit | 163 |