Black texture powder coated 24" tall portable collapsible custom pier built by Peter Ceravolo specifically for the HD216 series Maksutov Newtonian. Package includes the AP#S900PA Mount Base plate(Pier Adapter) for AP900GTO mounts, includes 4 knobs and azimuth block. This pier assembly is a beauty and looks like new. I had this pier professionally re-powder coated just 2 years ago and have taken very good care if it. Perfect for a Newtonian telescope mounted on an AP900 GEM. Compare this collapsable pier and price to available and more costly alternatives and you will recognize how good a deal this is..