Twist Lock is a lock which significantly increases safety. It eliminates almost to zero the risk of the lock releasing itself and of the carabiner not turning while climbing. It is very easy to operate, which further increases comfort.

The light weight of the lock significantly increases comfort when climbing - it does not perceptibly weigh down the person doing the activity. With a set of locks, one has greater freedom of movement. Lightness is also a major advantage when transporting.

The HMS carabiner, known as the ‘pear’ carabiner, has the characteristic shape of a pear fruit. It is characterised by its high clearance. It is most commonly used by rock climbers, mountain climbers and mountaineers. Its advantage is its versatility of use.