The perfect locker for use with pulley systems, swivels or shackles. The Ultra O is a symmetrical locking carabiner that allows the equipment attached to it to sit centrally at both ends of the carabiner - this means that the Ultra O has very stable loading characteristics because attachments will naturally self-centre under load with minimal movement of the biner. This characteristic makes it ideal for use with assisted braking devices, pulleys, swivels and shackles. It is also desirable for rigging where it is imperative that anchors are not shock loaded.
The Ultra O makes a good belay carabiner for tube devices as well, as the rope sits centrally, flows well and the carabiner tends to self-right in the belay loop and avoid cross loading.
Manufactured in tactical colours, it is suited to military and tactical climbing requirements in both mountain and urban environments.