iOptron® MiniPier is designed for iOptron GOTO mounts to provide 8" extra telescope height. The MiniPier fits on various iOptron tripods/piers, as well other brand tripod with some DIY. The MiniPier fits these iOptron tripod/pier MiniTower 1.5" Tripod (#8321ACC) MiniTower 2" Tripod (#8121ACC) iEQ45/CEM60 Tripod (#8021ACC) 48-inch Pier (#8030) and 42-inch Pier (#8033) Tri-Pier (#8034) The following mounts can be mounted onto the MiniPier: CEM60 GEM45 iEQ45/iEQ45 Pro iEQ30/iEQ30 Pro (won't fit on iEQ30 tripod, may limit low latitude application) AZ Mount Pro/MiniTower/MiniTower II/MiniTower Pro (*Not all accessories shown here are included. Specify your mount when ordering) Specifications Pier Diameter Ø5.7" (Ø144 mm) with 150mm top plate Height 8" (200 mm)