A dispensing device that attaches to a container has: (a) a hollow tube with opposing entrance and exit ends with a connector on the entrance end and a wall defining a flow channel; (b) a sleeve with opposing entrance and exit ends slidably extending over the hollow tube; (c) a sealing gasket between and contacting the hollow tube and sleeve; (d) a trigger mount rigidly attached to the hollow tube or container; (e) a trigger hingedly connected to the trigger mount and operatively connected to the sleeve; (f) an elastic element between the trigger and the hollow tube and/or container; wherein the exit end is closed and there is an opening through the hollow tube wall proximate to the exit end; the sleeve has an open dispensing end, reduces in inside diameter at dispensing end and engages the hollow tube when closed and disengages from the hollow tube when open.