for DeWalt NA021864 Drywall Sander Armature，Compatible with DWE7800，Measures approximately 4.00 X 3.10 X 3.40 inches This is a manufacturer replacement. Functionally equivalent to the previous components. Seamless Repairs, Peak Performance - Choose Our Parts Today Quality assurance: Careful design, excellent processing. compact and sturdy, and long-lasting. Super durable, high-quality substitute. Made of durable high-quality materials and rigorously tested by the manufacturer. For precise fitting and wise selection. Our trusted accessories ensure smooth operation of your accessory tools. Please confirm the model above before placing an order. Please double check the dimensions and photos to ensure proper fit.