Material: Glass (bottle) , stainless steel (ball) , plastic (bottle cap) Bottle weight: 1.07 ounce Bottle height: 82.3 mm Bottle diameter: 17 mm Glass roll-on bottles have three colors: amber, clear, cobalt blue. Three sizes: 2ml, 3ml, 10ml. Product quantity：6 ,12 ,24 . Tips: 2ml essential oil bottles are orifice reducers bottles,3ml and 10 ml are roller bottles. Our long lasting bottles can be reusable, you can easily refill those back any time. Use the mini essential oil roller bottles to apply the perfect amount of oil or other product each . The suitable capacity can meet your daily needs and is perfect for traveling, carrying outside, home using, office using. If you receive anything broken, please don't worry and tell us at once. We will send you replacement or refund within 24 hours.