Abstract: A scoop or pail shaped container having a plurality of openings surrounding its bottom outer portion and having a bottom cover pivotally secured to the bottom of the container. The cover has a plurality of openings about its circumference and is vertically ribbed on the outer surface to make it easy to grasp and turn in either direction. A pair of spaced semi-circular integral projections are upstanding from the cover and project through a central hole in the bottom portion to form a detachable pivot for the bottom cover. The cover has a vertically upwardly extending pin which engages an arcuate depression underneath the bottom portion, concentric with the arcuate depression to limit rotation of the cover in either direction. By adjustably varying the extent of overlap of the openings of the container and cover, variable amounts of particles in the container are dispersed uniformly.