?? Wide Application --- Refillable glass roller bottles are ideal for storing Synthesis Oil, Natural essential oil, essence, perfume or other liquids meet your needs of daily care for eyes, faces and body. Convenient size so you can take anywhere with you. You can fit comfortably in your pocket, purse, handbag, backpack, or luggage. ?? Safety --- The elegant purple essential oil bottle protects essential oil against harmful UV rays to save it from quick volatilization. Our roller bottles give you a more comfortable feeling and high-grade appearance, ideal for home and travel use. With a pack of 10 bottles, 10 ml per bottle, enough for you to use. ?? Stainless steel roller balls --- On the top of glass bottle is stainless steel roller balls to make dispensing the oils easy, clean and controlled. Our balls glide smoothly onto skin, which provides an easy, no mess application. These are made of stainless steel, which is corrosion resistant and well-made. ?? Superior Quality --- The essential oil glass roller bottles are made of corrosion-resistant glass which makes it thick, smooth and anti-shock with leak proof design metal roller balls and aluminum purple caps. 10 Pack, 10ml roll on bottle set includes 1 dropper and 1 bottle opener. The dropper can help you to transfer liquids and reduce waste. With our complimentary opener, the bottle can easily be disassembled and filled. One- stop shopping to save your time and budget.