This Level 5 7" Flat Box has an adjustable crown dial that ensures the precise amount of mud. Deeper back spine allows for easier operation. Hard coat anodized for durability. Lid opens extra wide for easy clean-up. Built for performance and value. The 7" box is ideal for first coats or when running a smaller box makes most sense. Look to a larger box, like 10" or 12" for secondary and final coats.