Plastic Growler caBulk Growler Caps， 38mm SureSeal Polypropylene for 32 oz or 64 oz Glass Growlers - Beer， Kombucha， Cider (50 Count)ps， insert for quality seal (50)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Ribbed sided design for easy removal</li><li>Chemical resistant and tough material allows for reuse</li><li>Fits 32 oz and 64 oz growlers as well as all 38 mm bottles</li><li>Matte top and SureSeal liner</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31N5HCnhBLL.jpg' noproxy></br>