Thank you for choosing our product! Note:We strive to provide the best service and products.Because glass is fragile, if you receive the damage products or other problems, please feel free to contact us immediately, we will try our best to make you satisfied.thanks! Product Details Size: 2.6*2.4*8.6inch Capacity: 13 ounces/380 ML Material: double wall borosilicate glass Function:Tea and Water Separation Tea Bottle Feature: 1:premium material:double wall borosilicate glass,it is safe for both boiling and ice water and BPA Free 2:Large Capacity.the volume is 13 OZ/380 ML.large capacity can be satisfied the demands of every time use. 3:Tea and Water Separation Tea Bottle 4:leakproof:Thick seal ring,shake at will not leak. 5:Easy to carry.Portable handheld rope,Hold it with your hand or strap it to your bag wherever you go. 6:Concentration can be controlled follow your need. Steps: 1:Put the tea leaves into the glass tea barn. 2: fill with boiling water, put the lid on the cup. 3: put the cup upside down, after a while,then you can enjoy your tea.