Material:<br><br> <b>Glass (bottle) , stainless steel (ball) , plastic (bottle cap) </b><br> <br> Bottle weight: 0.26ounce<br> <br> Bottle height(with lid): 43 mm<br> <br> Bottle width: 14 mm<br><br>Bottle diameter: 12 mm<br><br><br> Glass roll-on bottles have three colors: <b>amber, transparent, cobalt blue. </b><br><br> Three sizes: 2ml, 3ml, 10ml. Product quantity：6 ,12 ,24 . <br><br> Tips: <b>2ml essential oil bottles are orifice reducers bottles,3ml and 10 ml are roller bottles. </b> <br><br><br> Our long lasting bottles can be reusable, you can easily refill those back any time. <br><br> Use the mini essential oil roller bottles to apply the perfect amount of oil or other product each . <br><br> If you receive anything broken, please don't worry and tell us at once. We will send you replacement or refund within 24 hours. <br><br>