Alside EZ Corners are available in only white. The Alside brand EZ Corners have a matt finish and fit both the 5/8" and 3/4" Alside j-channel. E-Z Corners work around windows, porch ceilings, and soffit; wherever J-channel is used as a receiver or as trim. The E-Z Corner is nailed in place and the J-channel simply slips into it. These EZ Corners are designed to be used with Alside j-channel.