The essential oil bottle replacement rollers are made of good workmanship, which makes it smooth. Its compact size and lightweight makes the essential oil bottle ball easy to carry in your small bags, good replacement accessories for your essential oil bottle. Features -Color:White -Material:Jade -Size:2.00X1.10X1.10cm/0.79X0.43X0.43in -Note: Replacement rollers only, suitable for most 10ml, 1.6cm diameter outer thread essential oil bottles. - These essential oil bottle rollers are made of good workmanship, can have repeated and long time use. - Compact size, light weight, the essential oil bottle balls are easy to use, take and store, bring you convenience. - These essential oil bottle balls are good replacement, you do not need to change the entire bottle when the roller is broken. - Add this essential bottle rollers to your essential bottle, let you have even application, fit your demands. -Smooth surface, safe to your skin, and with simple, delicate color, the bottle rollers are suitable for most kinds of essential oil bottles. Package list: 8 x bottle rollers