Masterpiece Monet Pro features a 1-1/2" profile with a 1/2" lip that keeps the canvas positioned high above the bars to prevent lines and indentations. The key-able cross bracing on canvas sizes 20" x 20" and up offer additional strength, stability and warp resistance. Monterey Premium Cotton Canvas has a medium-weight and toothed surface. It weighs 7 oz. raw and 10.5 oz. after priming, which makes it suitable for acrylic, oil or alkyd paint. Stretched using MasterWrap technology, this canvas offers a drum-tight, archival surface that can be further adjusted using the pre-installed corner and brace keys. Folded corners and extra canvas selvage allow for re-stretching, and the clean staple free edges are great for display without a frame. The solid, finger-joint free, kiln-dried bars are milled with lumber harvested from sustainable forests in both Oregon and California.