WirthCo 32255 Clip On Spout (With Bottle Neck Card-Retail Package), 1 Pack Retail Clip-On Spout with Bottle Neck Convenient to use; helps protect against spills and drips into engine compartment or work area One side clips onto neck of plastic gallon container, other side clips onto neck of plastic quart container Chemically resistant co-polymer polypropylene 2-1/2" L x 2" W, spout OD 7/8 inch