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Whether you need it for sport or for work, the Kong USA Indy Evo is a manually operated descender device with a double auto-locking system, low weight, and compact size.This product will be shipped directly from Kong USA and will leave their warehouse in 2-3 business days. Eligible for UPS ground shipping only.. . . Made of lightweight aluminum alloy with stainless steel cams. Double auto-locking system locks when the lever is released or when it is pressed. Ensures descent at a controlled speed and lets you stop at any time, hands free. Allows two people to be lowered at the same time. Compatible with both static and dynamic ropes, 10-13 mm in diameter. Certified EN 341(2,A):11, EN 1891, EN 1284/C:06, EN 892, and NFPA-L. Every piece of Kong USA gear is tested and checked for safety.