This Vitrex 10 2950 Wall and Floor Adhesive Trowel (6mm and 20mm) provides a thick adhesive bed for wall and floor tile. The blade is hard cold rolled steel and handles are high impact plastic. This trowel has 6mm notches for wall tile adhesive and 10 x 20mm notches for floor tile adhesives. Specifications Size 100 x 230mm (9 x 4in). This Vitrex 10 2950 Wall & Floor Notched Adhesive Trowel provides a thick adhesive bed for wall and floor tile. The blade is hard cold rolled steel and handles are high impact plastic. This trowel has 6mm notches for wall tile adhesive and 10 x 20mm notches for floor tile adhesives. Specifications Size 100 x 230mm (9 x 4in). Notches Square 6mm, Round 20mm.