Achla Designs Crackle Glass Birdbath Bowl with Stake, 14-in, Cobalt Blue Bowl measures 14-in diameter by 2 1/2-in D with flat bottom Crackled Fern Green handblown glass, expect color variation Threaded Cradle and 36-in Stake included Roman Bronze powdercoated finish Winter protection for glass bowls is recommended. Do not allow water to freeze inside.