HME Products Plastic Trail Marker Tacks are a great alternative to the typical flat metal reflective tack. This tack has a stepped shank area with a supersharp post. The stepped shank will make them easier to hold onto when pressing in and easier to grip when removing. The supersharp point will allow them to be installed more easily into even the hardest trees. Tacks feature highly reflective faces. Color: White. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Treestand Accessories.