Introducing a new concept in mount support... The iOptron Tri-Pier combines the strength and stableness of a pier with the levelling flexibility of a tripod. Aluminum pier and leg tops. Stainless steel leg extensions. The Tri-Pier feet has built-in vibration suspension pads. The Tri-pier fits these iOptron mounts (may need extra accessories): CEM70 CEM40 GEM45(may limit low latitude application) CEM60/CEM60EC iEQ45/iEQ45 Pro iEQ30/iEQ30 Pro (may limit low latitude application) AZ Mount Pro/MiniTower/MiniTower II/MiniTower Pro ((needs a center post and three leveling screws #8340-PIER) The Tri-pier also fits other brand mounts with a suitable adapter. Manual Assembly Instruction Refer to CEM60 Instruction Manual for CEM60 application Refer to iEQ45 Pro Instruction Manual for iEQ45/iEQ45 Pro application Refer to MiniPier Instruction Manual for iEQ30/MiniTower/MiniTower Pro application Specifications Max Payload 220 lbs (100 kg) Self Weight ~25.8 lbs (11.7 kg) Pier Diameter 5.7" (144 mm) with 150mm top plate Adjustable Height 31.5"-42.5" (800-1080 mm) Uneven Ground Range 3.35" (85 mm) Leg Maximum Spread Ø48.8" (Ø1240 mm) Pier Dimension (folded) Ø12.8"x 26" (Ø325 x 660 mm) Warranty One year limited