Our Hand Painted Blue Crab Embossed Glass Birdbath Basin beckons feathered friends to your yard. Composed of high-quality glass, the 18" bowl is beautiful yet practical. Its bright colors and functional design are sure to delight both humans and songbirds! Basin will also attract honey bees and butterflies to help support your backyard habitat. Fill the basin with about 1" or 2" of fresh water; no need to fill completely, shallow water is best for birds. Place clear glass, stones or small pebbles in the bottom to adjust water depth. Place this glass birdbath on the ground, on a tree stump or your own pedestal stand or base (not included). Shallow design is perfect for smaller songbirds. Tempered glass is easy to clean. For longest life, bring indoors during danger of frost.