EASY TO HOLD - Unique bubble shapes give the glass dents and edges, where your fingers can find good grip even when the head is wet and smooth with condensation from old drinks SUPERIOR QUALITY GLASS - Made with strong and BPA free glass, this mug will not break or splinter easily; you can safely hold the hot tea or coffee without damaging the glass EFFORTLESS CLEANING - Want a second cup of coffee? The glass is easy to clean by hand and mild soap; the reeds come with their own brush that gets rid of the residue well