The antenna holders allow for mounting in any direction to obtain proper phasing of the antennas. These holders also include a small antenna guide to keep the antennas nice and strait during the installation process. They have a tubing installed in them to prevent any chafing from vibration, and the antenna simply slides right through. They are designed so that the antenna end sticks out of the holder, free from any materials. We have done extensive testing and the holders or the antenna mounts do not impede any signal strength.
This is the black High Temperature version.
Weight - 6 grams