Roc'teryx ascender with high durability and reliability. Maximum load 4kN, suitable for ropes with a diameter of 10-13mm. ＜Set of 2 for sale＞ - Brand: roc'teryx - Model: CE 1019 - Maximum Load: 4 kN - Suitable Rope Diameter: 10-13mm - Color: Black Thank you for viewing. I purchased two of these for securing a lifeline during exterior wall DIY repairs at home, but I ended up not using them. One has been opened, but both are unused. The unopened one contains the instruction manual. Thank you for your consideration.