- USE: Conforms to the shape of the crack (semi-hardened steel, not heat-treated).
- MATERIAL: Made from steel.
- CHOICE: The ROCHER MIXTE comes in three lengths, 6 cm, 8 cm, and 10 cm.
- LIGHTWEIGHT: Only weighs 90 grams.
- TEMPERATURES: The acceptable temperature range for use is 176 degrees to - 40 degrees Fahrenheit.
Petzl Rocher mixed knife hooks for narrow, parallel cracks in lime and granite.