Flat boxes hold up to 30% more joint compound than standard flat boxes. Flat boxes feature a premium grade aluminum housing that has been hard-coat anodized for extreme durability and easy cleaning. They are fitted with a flexible brass blade holder and a stainless steel blade. Spring assisted with an improved wiper on the pressure plate, combined with a smooth pivoting hinge axle, making this one of the easiest drywall flat finisher boxes to operate. It features a handy finger pull on the pressure door that makes fill-ups quicker and easier. Adjustable crown dial ensures the precise amount of mud. A flat box is used in conjunction with a flat box handle to efficiently apply a crowned, feathered coat of joint compound over taped joints on walls and ceilings. A crown adjustment dial provides 5 settings, so the ideal amount of compound can be dispensed on the wall to ensure consistent, professional results. It can be stretched and can take into account your height, whether it is the ceiling or skirting, it can be easily handled and covered, just lightly press the spring buckle, you can freely lengthen or shorten. Efficiently applies an even, consistent layer of joint compound to taped flat and butt joints on walls and ceilings. Joint edges are feathered to perfection. Flexible brass blade holder and SS blade allows for proper compound application and crown. Flat Box can be used for a variety of tasks including coating beads (external, internal or splayed) coating screw indentations and filling flat recess joints. The Flat Box has the usual wheel axle with the wheels running inside the blade width. 12 inch Drywall Box+40-63in Handle. 12.6x 6.7 x 4.9 in. Length of Flat Box. Automatic boxes feature precision joint compound metering adjustment for top quality finish surfaces on drywall butt joints and flat seams. Integrated axle and pressure plate system allows smooth, easy operation and quick access for easy cleanup! New, ultra-reliable plate wiper resists expansion or deterioration, for long-term ease of operation and greater reliability. A Drywall Flat+A Handle. We are always happy to give assistance. We will get back to you within 24 hours. We wish to hear from you! Your satisfaction is our motivation. Most packets can be tracked.