The Interchangeable Big Window Base DIY Kit is the foundation piece for our Interchangeable Window Collection. This beautifully designed arched window base stays on display year-round while you swap out seasonal and holiday trio inserts in front of it—making decorating simple, space-saving, and endlessly customizable. DO NOT GET PAINT IN SLOT OPENINGS. Make sure each slot opening is perfectly aligned. With its classic arched window shape and neutral design, this base works seamlessly with every trio insert in the collection, from everyday décor to holidays and seasonal displays. How the Interchangeable System Works The arched shape window base remains the sameSeasonal and holiday trio inserts sit in front of the windowEasily swap inserts without changing the baseCreate a new look for every season with one simple switch This listing is for the interchangeable window base only. Trio inserts are sold separately. DIY Kit Details Laser-cut wood DIY kitClassic arched window design with grid detailLayered construction for stability and depthUnfinished wood ready to paint, stain, or sealSimple assembly using super glue -not included You Will Receive Unfinished wood kit Compatible With All Interchangeable Trio Inserts in the collection, including:Everyday décorSeasonal designsHoliday and themed trio inserts Perfect For Year-round home décorTiered trays, shelves, and mantelsCraft nights and workshopsInterchangeable décor collectionsMakers who love customizable DIY projects Please Note This listing includes the window base onlyTrio inserts shown in photos are NOT includedPaint, glue, and embellishments are not includedFor decorative use onlyMaterial is hdf - high density fiberboard and laser marks are normal Pro Tip Pair this base with a few of our starter inserts—such as Home Sweet Home, Christmas, or Seasonal Favorites—to build an interchangeable décor system you’ll enjoy using all year long. insert trio sets are not included.