The DR Trimmer / Mower is much easier to control than a handheld trimmer, but it\'s extra power can cause damage in sensitive areas around trees, garden borders, against wooden panels or fence posts.Suitable for the DR TR4 2013 range of wheeled trimmers.The TrimSafe Guard attachment will prevent accidental girdling of trees or any other unintended damage without slowing you down.Once the mounting plate has been installed the tree guard goes on and off using two pins, which takes less than a few minutes.