This BEST 40” lightweight stretcher bar is a great option for artists of all backgrounds. These stretcher bars are made from sustainable white pine. In spite of their low price, they are a great choice for artists of all backgrounds and experience levels. They will keep your canvas sturdy and looking great for years to come with proper care. They should not be used for larger sized artworks, as heavier duty stretcher bars are normally necessary for those. Cut 1/8” shorter than the listed measurements to accommodate a picture frame if this is a requirement. Easy to assemble for artists of all backgrounds.