1/2 oz blue glass boston round bottles available in bulk quantities can be a top choice when packaging samples, gift sets, hotel amenities, and more. The 18/400 neck finish size is compatible with a range of closures, and the straight, smooth sides provide a variety of branding possibilities. Cobalt blue glass provides adequate UV protection, assisting with keeping your light-sensitive products maintained when storing. Glass boston round bottles are easily recyclable, making them a top choice for a range of products.