... .0*18.8cm 2,Material is borosilciate glass 3,eco-friendly,heat resistant, 4,High quality,good price, good as gift Clear Glass Bottles ... With Black Crystal BottomProduct description: 1,Material is borosilciate glass which is eco-friendly,heat resistant ... be heated by alcohol lamp directly4,Its size is 7.0*18.8cm5,Trial order accept,small order accept6,High quality ...