PETZL Tandem speed P21 SPE

The TANDEM SPEED double pulley is designed for zip lines or tensioned highlines and has stainless steel sheaves mounted on sealed ball bearings for excellent efficiency. It accepts up to three carabiners to facilitate use.
It is specifically designed for lower-angle Tyroleans.
Stainless steel sheaves for excellent durability
Sheave mounted on sealed ball bearings for excellent efficiency
Accepts up to three carabiners to facilitate use
Specifications
Rope compatibility: Diameter: 13 mm or less
Sheave diameter: 27,5 mm
Ball bearings: Yes
Efficiency: 95 %
Maximum working load: 10 kN
Maximum allowable speed: 20 m/s
Weight: 270 g
Certification(s): CE EN 12278