This White Rhino glass straw is made from high-quality pyrex glass and stands 5" tall x 12mm. This glass dab straw also features a silicone cap to keep the tip from getting dirty. Works best with silicone jars or a dab dish. Pyprex is ideal for low temperature use. If you like to use high temperatures with your glass straw you may want to go with our Quartz Glass Straw.