The L252W is a white PP plastic 89-400 high smooth skirt lid . A yorker spout is a conical-shaped closure with a small cap on the tip. To dispense product, the tip cap must be removed and the tip of the spout must be drilled or snipped. The tip cap is then put back on the spout to preserve product. This lid is made of polypropylene (PP), which means it has a high heat tolerance level and an excellent resistance to fatigue. This closure fits a container with a 89-400 neck finish. The first number refers to the diameter of the container's opening (in mm). The second number refers to the thread/style/depth of the closure's skirt.