The 30 Re-Gen specimen container and lid is a set of 30 round, clear plastic jars with a capacity of 30ml each. The jars come with blue caps and are perfect for crafts, samples, specimens, creams, and lab use. These modern-style jars have a diameter of 34.5mm and are reusable, sterile, and multipurpose. With a height of 8 inches, these jars are ideal for storing small amounts of various items while keeping them organised and secur