The original oval shape was developed on the principle of a chain link fitted with manual nut opening. This shape reflects the spirit of Maillon Rapide quick links connectors.
| Zinc plated steel | Ø 2,5 to 20 mm |
| Stainless steel | Ø 2,5 to 16 mm |
| Zicral | Ø 7 to 10 mm |
| Brass | Ø 3 to 8 mm |
| Polyamide | Ø 6 to 10 mm |