Edelrid Performance Static 9 mm semi-static caving rope type B is extremely resistant to abrasion with a 40% sock.The rope has a low percentage of elongation and a reduced weight of 53 grams per meter.Edelrid Performance Static 9 mm is used for speleological activities, rescue maneuvers or work at height.Lightweight and small in diameter, it is designed for experienced users.Thanks to the Thermo Shield treatment the rope remains very manageable over time, without becoming rigid. Instructions. Edelrid Performance Static 9 mm semi-static caving rope