Super thick bottom asteroid cup hand made glass pure hand blowing

Size: height 10cm, width 8cm, cup mouth 8cm, cup bottom 5cm ±0.5cm Color: transparent, blue, yellow Weight: 530 ±0.5g Capacity: 160ml Material: American Spectrum Glass 96Na20 soda glass This piece is completely hand-blown, the photo is the real item, this piece is the only one, unique. Packed in a kraft carton for safety. Production instructions: Hollow blowing, use an iron hollow blowing pipe, take out the melting furnace and place it in a melting furnace of 1150 degrees to present the glass paste of maltose, and blow air from the other end to expand the glass body, blow out the required size of the hollow shape, and The shaped glass is produced in pure Taiwan. https://live.staticflickr.com/65535/51656196438_b9f8081736_k.jpg