<b>Specification:</b><br> Material:Glass Roller Bottles + Black Plastic roller Caps+Stainless Steel Roller Ball.<br> <br> Size :diameter:15mm/0.59 inch;height:56mm/2.20inch,<br> <br> Capacity:5ml.<br> <br> Bottle Color:Purple.(as the picture shows).<br> <br> <b>Package Included:</b><br> 40 * 5ml Purple Glass Essential Oil Roller Bottle with Stainless Steel Roller Ball and Plastic Black Lids(All in Box).<br> 2 * 2ml Extra Plastic Dropper.<br> 1*Essential Oils Key.<br> <br> <b>How to use the Essential Oils Opener:</b><br> 1, Removing the Stainless Steel Roller Balls: put the edge of the opener underneath the Roller Balls and push down. Roller Balls would pop out.<br> 2, Closing the Roller Balls: Once the Roller Balls pops out, find the correct hole in the center of the operner that fits your Roller Balls size. Place the correct hole on the top of Roller Balls and press down.<br> <br> <b>Warm Notes:</b><br> 1.Suggest you wash with Warm water or soapy water before you use it.<br> <br> 2.Includes a essential oil key to help you to remove the Stainless Steel Roller Ball easily and quickly.<br> <br> 3.Includes 2 pieces of 2ml dropper to help you refill the bottle easily and quickly.<br> <br> 4.If you receive anything broken, please don't worry and tell us at once. We will send you replacement or refund within 12 hours.