These white matte spiral paperboard tubes come with a white plastic cap with two openings. The larger opening is .44" in diameter for pouring, while the sifter has 6 small holes that are each 0.10" in diameter for dispensing product in smaller quantities. To switch between either opening simply turn the cap left or right until it lines up with the push hole. These white tubes are a paperboard packaging eco-friendly alternative for products in a variety of industries.