Here's what other sites are saying:
The Spelegyca double lanyard from Petzl is designed with two attachment points to help pass anchor points along a life line or hold your ascenders.
- Mountain Gear
The Spelegyca by Petzl may be hard to pronounce your first time but it is easy to use. This is a great asymmetrical Y-shaped sewn lanyard that is made of flat webbing.
- Summit Hut
The Petzl Pirana descender is effective for single or double rope canyoning descents and can be installed on the rope without removing it from the harness.
The Spelegyca Lanyard by Petzl is an asymmetric double lanyard designed to help pass rebelays when caving or canyoneering. The Specs Weight: 90 g 3-year guarantee Material: Nylon webbing