This durable and classy plastic beer mug will have all of your guests taking a second look. Is it glass or is it plastic? These 18 ounce beer steins are indeed plastic but have the look and feel of glass. No threat of cracks or breakage with our heavy duty acrylic beer mugs. With the heavier bottom of this mug the feel is more like glass and not a flimsy plastic version. Your plastic mugs can be custom printed with any logo or text. Keep your plastic beer mugs in the freezer to serve an extra frosty brew!