TOPWEL 24pcs (5/8 dram) 2 ml Amber Mini Glass Essential Oil Bottle with Orifice Reducer and cap Capacity: 5/8 Dram (1/12 ounce, 2.3 ml) Size: 16 mm x 25 mm (0.63 x 0.98 in.) These terrific little jars that are perfect for essential oil samples or for blending small amounts of oils