- Spring loaded arm for precise and reliable locking operation. The spring holds the arm in open or closed positions.
- The Quick Lock function is intended for temporary use only, and does not replace a normal clutch or a cleat.
- Acetal sheave (PBB 60).
- Glass fibre reinforced sheave with polymer bushing (PBB 80).
- Torsionally rigid cheeks in glass fibre filled composite prevent jamming of the line.
- Radial loads are absorbed by a stainless strap inside the cheeks. A safety feature quite typical for Seldén products.