Abstract: A container for receiving and containing items to be disposed of, such as medical waste (used syringes, needles, and the like), is assembled from a blank, and comprises bottom, front, rear, top and end panels. The top panel has a front flap provided with opposing flap tucks which, when the container is assembled, are inserted into spaces between respective end panels and respective minor flaps of the front panel, thereby securing the top panel against inadvertent opening. The top panel also has a syringe-shaped opening which serves as an access to an inner flap of the front panel below so that, when an item to be disposed of is deposited through the opening onto the inner flap, and when a force is exerted on the inner flap from above, the inner flap rotates downward, and the item is deposited in the container. The inner flap is biased to a closed position so that, upon removal of the force, the inner flap rotates back to the closed position.