Fill these 2 ounce marker bottles with Handy Art washable or tempera paints to create your own paint markers. Marker bottles have pressure sensitive valves which ensure they won't spray when squeezed. Bottles can also be filled with other water based products and liquids such for other uses.Details:Clear and white2 oz. (59 mL) bottle size12 packs (12 bottles per pack, 144 total bottles)Fill with paint, or other water based products and liquids for other usesWorks with handy art washable or tempera paints (sold separately) Pressure sensitive valves ensure markers won't spray when squeezed