VideoSecu Projector Ceiling Mount with 4 pieces 5.5 inch Extension Adaptors for Epson 8350 Projectors 1YF Fits flat and vaulted ceilings, Ceiling plate dimensions 4 in x 1.5 in, Heavy duty steel construction supports weight up to 44 lbs Without extension poll, the height is 5.9"; With extension poll, height adjustable from 18.1" to 26.7" (45.9-67.8 cm); Ceiling plate adjustable 0 to 90 degree swivel With two pair of the longer extension adaptors the mount could cover an area up to 17 inch in diameter Multi-directional adjustment tilts, swivels, Rotate and extends Package content: Ceiling plate, ceiling poll, mounting arms, extension adaptors and standard hardware to your projector and ceiling included