These Wheaton wide mouth bottles are super handy for storing all sorts of stuff, especially thicker or dry samples. They're made from clear soda lime glass that meets USP Type III standards, so they're good quality. Each bottle holds 4 ounces and comes with a white polypropylene screw cap that has a PTFE-faced liner for a solid seal. The wide opening makes it easy to fill and clean. Dimensions are about 52mm in diameter and 84mm tall. They come in a partitioned cardboard case of 24, which keeps them from getting scratched up. Also included in each case is a hazardous communication label and a tamper-evident seal if you need to label or secure your containers. Extra caps are sold separately if you need 'em. Great for labs, workshops, crafts, or anyone who needs small, reliable storage jars.