<br><b>Looking for a SAFE Tandem Trolley for your Backyard Zipline Set? <br>Try NAXEN Zipline Pulley!</b> <br><br><b>Never get Rust.</b> <br>Made from stainless steel(sheaves) and aircraft aluminum alloy(plate), the pulley can easily handle any outdoor enviornment. <br><br><b>Cable Compatible.</b> <br>With stainless steel sheaves, the tandem trolley can work on cable and textile rope both. <br><br><b>Smooth Rotation.</b> <br>Thanks to ball bearing, NAXEN Zipline Pulley features great smooth, maximum speed rating up to 35 m/s. <br><br><b>Super Sturdy.</b> <br>The MBS of this pulley is rated at 30kN (6700lbs). <br><br><b>Professional Oval Carabiner Available.</b> <br>You can choose our professional carabiner to connect with the pulley. <br><br><b>Specification</b> <br><b>Pulley</b> <br>Material: <br>-Sheave: Stainless Steel <br>-Plate: Aircraft Aluminum Alloy <br>Break Strength: 30kN <br>Maximum Allowable Speed: 35 m/s. <br>Ball Bearing: Yes <br>Max Rope Size: <br>-Rope: 13 mm <br>-Cable: 12 mm <br>Certification: CE EN12278 <br><br><b>Carabiner</b> <br>Material: Stainless Steel <br>Breaking Strength: 25kN <br>Certification: CE EN362