The length of static rope on downhill slope is generally 30 ~ 100 m; 10.5mm downhill static rope is generally 30 meters, generally enough rocks, larger ones, or 50 meters in the valley, plus 10 meter power rope insurance. Do not use the splayed ring on the power rope, which will easily shorten the service life. If you have money, don't use power ropes, use buffer bags and descenders.