The alcohol wash strainer makes it easy to reuse alcohol from your alcohol wash mite count. The small metal strainer is placed onto a standard wide mouth mason jar and the ring is screwed on over the filter to keep it in place. The filter makes it easy to pour your used alcohol wash into the strainer to catch any debris or varroa mites after your mite count is done using a Varroa Check, ensuring clean and reusable alcohol for your next varroa mite count. The pink plastic cover goes over the strainer and under the ring when not in use to store the strained alcohol. COMES WITH GLASS 16 OZ. WIDE MOUTH JAR, STRAINER, RING, AND PLASTIC COVER. GLASS ITEMS SHIP AT YOUR OWN RISK.