Material: Aluminum Alloy <br>White gear: Aluminum Alloy<br> Rope compatibility: 8 - 13mm(0.315 -0.512 inch)<br> UP Max Strength: 4kN / 890lb Height: 4.57 inch Width: 3.15 inch Weight: 0.35 lb<br> Certification(s) : CE 1019 & EN 567<br><br> Ascender provided comfortable and excellent grip improving the ease of climbing largely with no need to grip rope with your hand. The ascender moved freely and smoothly up rope and clamped to the rope when pulled down The device fits 1/2" ropes. The product the teeth are sharp they bite down on your rope. We ordered this ascender so we can climb with ease.<br> Warm Tip:<br> We provide 90-day warranty !<br> If you have any questions, please contact us and we will reply within 24 hours<br>