24 oz. Clear Mason Jar Style Drinking Cup. Made with a durable Eastman Tritan copolyester body and screw-on PCTG acrylic straw. Item is BPA Free. Mugs are a brilliant way of getting your name out there, and wow-ing your clients with a convenient promotional gift. With high-quality silkscreening and cost-effective prices, this is an easy and inexpensive method of promoting your business.