The Vitrex Professional Notched Adhesive Trowels are designed for use by the professional installer and are made to the finest quality. They have stainless steel bases and reinforced, dual riveted, rust resistant blades for longer life. The trowels also have two exposed rivets at the top of the staft which strengthens the hold on the blade, so that the blade will not come away from the shaft when lifting a tile. A soft-grip handle provides extra comfort. Size: 115 x 280mm (11 x 4.1/2in).Vitrex Professional Notched Adhesive Trowel. Size: 115 x 280mm (11 x 4.1/2in).Sqaure Notches: 6mm.