| Product No | Description | D | H | B | T | sheave | weight | MWL | rope |
| WLB45 SB/BB | Wirbelblock | 45mm | 80mm | 25mm | 25mm | POM | 110g | 1400 daN | 12mm |
| WLB60 SB/BB | Wirbelblock | 60mm | 105mm | 30mm | 25mm | POM | 220g | 2800 daN | 14mm |
| WLB80 SB/BB | Wirbelblock | 80mm | 140mm | 35mm | 35mm | POM | 480g | 4200 daN | 20mm |