SAFE! Made of lighweight, durable, food-grade stainless steel;BPA/phthalate free, non-leaching, antimicrobial, and dishwasher safe.;THE SPOUT is designed specifically for for developing palates. Straw-shaped, wide and flat.;THE VALVE is cross-cut to provide an even flow while preventing spills.;THE SLEEVE is colorful and protects little hands from cold liquids. It also makes gripping easier and protects the bottle when dropped.;THE HANDLES are perfect for little hands and are removable when child grows.