Set of Four (4) glass Chalkboard Mason Jar Beverage Cups with metal lids & straws. * Perfect serving cup for blended drinks, smoothies and other cold beverages. * Dimensions: 3.5" diameter x 5.3 High, Capacity 15-oz each. * Write on these jars with included chalk and wipe clean with a damp cloth. * Ideal for writing contents, a clever comment or names.