Quantity: The package contains a total of 60 pieces of replacement bottle caps, enough quantity to meet your various usage needs. Dimensions: Adapter 20.5mm wide, 21mm long, 11.5mm thick, inner diameter is 0.64 inches (16.5mm), hole diameter is 0.14 inches (3.6mm), please make sure the size of the bottle; Material: Dispensing Snap Top Closures are made of plastic, tough and durable, smooth surface practical lightweight, good sealing. Easy to use: Just push it into the bottle and put the lid on; after using in the bottle, you can just remove the adapter. Widely Used: Push-in plug is ideal for sample bottles, lotion bottles, essential oil bottles and other kinds of cosmetic bottles, suitable for home, store and other dispensing. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.