* Material: Glass<br> * Capacity: 10ml<br> * Roll balls are made of stainless steel, well-made.<br> * Roller bottles with leak proof design metal roller balls and screw caps.<br> * You can DIY your own essential oil perfume receip which is 100% handmade. Perfect for home, travel, office and so on various occasion.<br> * This leak-proof, 10ml (1/3 oz) roller bottles set with all the tools you need is convenient and economic.<br> * You can put it in your purse or suitcase to take it to wherever you want, and don’t need to worry about the leaking problem.<br><br><b> How to use the Bottle Opener:</b><br><b> Step1:</b><br> Removing the orifice reducer insert: put theedge of the opener underneath the reducer and push down.Reducer would pop out.<br><b> Step2:</b><br> Closing the orifice reduce insert: Once the reducer pops out, please find the suitable hole in the center of the opener. Then place the right hole on the top of reducer and press down.<br><br><b> * Package include: </b><br> 10 x 10ml Silver Glass Roller-on Bottles<br> 1 x Bottle Opener Tool<br> 2 x Funnels<br>