Green Sprouts, Inc. - Glass Sip & Straw Cup - 4 oz

Liquids only touch silicone & borosilicate glass | Straw supports healthy oral development | Drip-free spouts with unvented free flow for natural transition from breast-feeding | Non-slip, shock-absorbing base helps resist breaks | 2 straw drinking options: traditional & tilted | Use under adult supervision and check for breakage often | 4 oz (125 mL) | Materials: Polypropylene; Silicone; Glass; Synthetic Rubber |