TOPWEL 10ml/15ml/20ml/30ml Refillable PET Transparent Plastic Essential Oil Bottle with Black Flip Top Lid (30, 15ML) Material: PET Plastic Color Transparen bottle with black flip top lid Easy to use and clean.Perfect for travel, and conveniently fits in your purse These terrific little jars that are perfect for essential oil samples or for blending small amounts of oils