Handy, hard-to-find bottle size for storing dispensing small amount of liquids 3 x 1/2" * Poly material resistant to most chemicals, clear so you can see contents at a glance * Screw-on lids have flip-up tops; small nozzle lets you release drip or squeeze bottle for stream * Included mini funnel for easy filling; set of 12 bottles with tops, capacity 12ml (.4 fl oz) * Perfect for dye, paint, coloring; also great for small-particle dry goods like beads