High-quality materials: Leak-proof design, good sealing performance, corrosion-resistant glass bottle, practical and durable steel ball, ideal travel perfume bottle. The smooth-rolling metal ball can be evenly oiled, and there is no longer a roller jam or falling. Small size, compact, light weight, very suitable for travel, easy to carry, refillable, safe, and convenient. Stainless Steel Ball Bamboo,Gold,Silver,there are 3 colors of caps Clear Empty Frosted Glass Roller Bottles Roll on bottles for oils： The essential oil roller bottle is made of a frosted glass body and stainless steel balls. The roller design prevents any leakage while using oil oiling. It is very suitable for loading various oils. Roll on bottle： You can use these roller bottles to store essential oils, perfume oils, or other liquids. Or make your own formula to meet your daily care needs for the face and body. The 10ml roll-on bottle is more suitable to be put in a wallet or handbag, which is very suitable for travel. How it works? Use Jxcmeng roll-on bottles to storage essential oils, perfume oils, or other liquids. DIY your own formulation to meet your needs of daily care for the face and body. The capacity of 10ml roller ball bottles is more suitable to put in your purse or handbag and perfect for travel. Warm Notes: The item is just an empty roll on Bottle, without Perfume in the bottle. Suggest you wash with Coldwater or routine disinfection before you use it. Check the bottle is works and put the perfume into the bottle. Not is suitable for thick liquid. Packing List: 12 × 10ml Empty Frosted Glass Roller Bottles 2 × Extra Roller Balls for Replacement 2 × Opener Tools 2 × Droppers 2 × Funnels 2 × Pump Transfer Tools