Size: necklace: about 19.8 inch(50.5cm) long(excluding chain extender), 2mm wide, pendant: 35~35.5x22~23x12~13mm, extension chain: 50~51mm; Dropper: 64x7mm, 1set including 1pc necklace and 1pc Dropper; perfume bottle capacity: 0.15~0.3ml(0.005~0.01 fl. oz)