The ISC Big Dan Karabiner is a very strong steel karabiner. With a high breaking strength, this karabiner is ideal for heavy loads. It is very durable and so can withstand harsh environments. The ISC innovative blind nose design helps minimise the risk of any snagging or plucking damage to your climbing line.

The patented ISC triple lock gates utilise stainless steel springs to ensure a long life under extreme conditions and are almost impossible to open accidentally, yet once mastered they can easily be installed with just one hand