Pro Grade stainless steel trowel Versatile square notched design for spreading thinset and mastic Ergonomic Rubber Grip Comfort Handle Longer shank for durability Lifetime Warranty Edward Tools Squared Notch Tile and Flooring Trowel is the ideal tool for spreading thinset or mastic when installing flooring or tile. The pro grade stainless steel is durable and just the right flex for consistent spreading. This trowel is the standard 1/4” x 1/4” x 1/4” size. The ergonomic rubber grip handle makes for more comfortable use. Edward Tools Squared Notch Tile and Flooring Trowel comes with a lifetime warranty.