Plastic Caps and plugs are some of the most commonly used items in the medical field. These products are made from medical-standard plastic and produced in bulk quantities due high demand. Offered  capsules are useful for those in the pharmaceutical field for the enclosure of reagent bottles and drips that contain medicines and fluids. Our caps and plugs were designed for preventing air, liquid, and other materials from getting in.  For our client's convenience, these items come with instructions carved in them such as close tightly or aiding users in effectively tightening the lid and push down & turn to open.