The holder itself serves its purpose very well. I have attached to the top tube of my bicycle. Keeps the rubber bottom with two cable ties very well, even against rotation. BUT: Operates up to the Oregon 600 easy to slide onto the mount and take off again, touching up is announced. The guide rails must be reworked with a fine file, only the Oregon 600 can defer with normal force and decrease again primarily. This problem did not exist in the Oregon 600 enclosed carabiner mount. Conclusion: Only those who have a little manual dexterity, should buy this mount. Have me the backpack bracket ordered'm curious if this is so poorly finished.