Our contractor-grade QLT Plastic Notched Trowels reliably spread material and easily clean off afterward. These trowels come in two notched shapes, Square or V-Shape. The Square notched trowels are 11" x 5-1/2" and have dual-edged for use with bonding and floor tile adhesives. It also is excellent for installing radiant floor heating elements. The V-Shaped notched trowels have a 9-1/2" x 4-1/4" blade and can be used with either your right or left hand.