Full Details from Amazon.com : http://www.amazon.com/gp/product/B000NFVUJ2?tag=onigi-20

Elite Screens 12 Manual/Spectrum/VMAX2 wall and ceiling hanging L-brackets ZVMAXLB12-B

Perfect for keystone elimination chalkboard clearance or corner mounting Includes screw kit for easy installation
Gives 12 inches of Clearance
Brackets can be used for VMAX 2 electric series and Manual screen models