If you purchased your side trays before 2016 or your side trays have internal measurements of 7" x 10 1/16" or 7 5/16" x 10 1/4", these are the replacement palettes you need.  

Note: The easel will not lock properly if you choose to install an expandable palette in each side tray.  

The STRADA Expandable Palette for the Side Trays is half the weight of glass, unbreakable and just as easy to clean.