The Krinner Premium XL is equipped with the original single cable operation. This clever clamping device guarantees equal claw pressure around the trunk. Just place your tree in the open stand and pump the foot pedal until the claws have firm contact to the trunk, ready! The tree stands absolutely firm and straight whether the trunk is thick, thin or crooked. The revolutionary patented bell in the foot pedal “DINGS” when the claws have securely closed around the trunk. At the same time the foot pedal is automatically secured in the locked position. For a grinch proof Christmas tree. Stressful bending to check whether the tree is straight or to secure the foot pedal is thus a thing of the past. The patented safety belt with its step by step ratchet mechanism provides additional safety so that the tree cannot fall over spontaneously.