The dispenser set is made of BPA-free plastic and the shot glasses are made of glass. It's easy to use, simply pour your favorite liquor into the dispenser, place the shot glasses underneath, and press the lever to dispense. The dispenser is also portable, making it easy to transport to any party or event.  The price drops from $24.95 to $19.96. Shipping is free on orders over $35 or for prime members. Otherwise, it adds $6.99.