The 8-ounce natural-colored Boston round made of HDPE with a 24-410 neck finish. Boston rounds have rounded shoulders and a round base. They also have a narrow screw neck perfetc. for pumps, sprayers, and droppers. They are perfetc. for personal care packaging, chemical containers, pharmaceuticals and more.
24-410 Black Ribbed Disc Top Cap PP (.312" Orifice)
24-410 Natural-Colored Smooth Disc Top Cap (.310" Orifice)