Wild Bird Thermal Mugs are Poly Thermal Mugs. Set of 4 attractive black interior poly thermal coffee mugs have wild bird images under clear plastic cover. Four mug set has artistic renderings of New Light Loons, Chickadees, and 2 Wild Bird Chorus Line. The mugs have slide drip prevention on their screw on lid.

Dimensions: 7.25” Tall x 3.5” Diameter