This 44” BEST lightweight stretcher bar is constructed from affordable and durable white pine. Pine is sustainable and affordable and a great choice for these stretcher bars. These are not meant for heavy duty use on very large canvases, but they work great for smaller lighter canvases. They work great in the classroom setting and for new artists who need a cost effective option for their artworks. They are also good for experienced artists who need durable and low cost stretcher bars for their smaller works of art. Cut 1/8” shorter than the listed measure to fit snugly inside of a picture frame.