The hypoallergenic glass is nonporous and body safe, and when cared for properly, is designed to last a lifetime. Since glass is nonporous, cleanup is a snap. Amazing for temperature play, sleek and super smooth, unique and hand crafted. Specifications: Item Length 6 inches (152 mm) Item Width 2.5 inches (64 mm) Item Height 1.5 inches (38 mm) Item Girth 4 inches (102 mm)