200cc [Forest Handmade Double-layer Cup] Heat-insulated and non-hot Italian espresso coffee cup

**Please click [Contact Designer] to remark the engraving content (Chinese, English, Japanese and Korean numbers are acceptable)** Brand: MSA GLASS ENGRAVING designer hand-carved Material: hand-made glass products/manual blown high borosilicate glass Heat resistance: instantaneous temperature difference -20℃ to 150℃, expansion coefficient 3.3 Size: Cup diameter 7.8cm x height 8.8cm, bottom diameter 5.5cm (manual measurement) 150cc~200cc **Custom range: one sentence (Chinese, English, and Japanese numbers are acceptable)** **(Special custom orders are quoted separately according to the complexity, welcome to provide customized drawings)** Note: Hand-blown glass has slight differences in size, shape, weight and thickness. The small bubbles on the cup body and the knots on the bottom of the double-layer cup are required for craftsmanship. It is a normal phenomenon. Please pay attention to these characteristics before ordering. Or customer service consultation to avoid minor misunderstandings or disputes **Each batch of handmade is a little different** An air layer is formed between the double glass, which effectively slows down the heat exchange between the inside and outside of the cup. Whether it is filled with tea or coffee at a higher temperature, or ice water or Coke at a lower temperature, your hands are kept at a suitable temperature . https://img-shoplineapp-com.s3.amazonaws.com/media/image_clips/5622d30e69702d68b2a22e00/source.jpg?1445122829 **Special reminder for double cup** 1. Hand-blown glassware has individual tiny bubbles, streamline marks, and hand marks, etc. Non-defective products! 2. Small differences in roundness, height, radian, etc. are common in products of the same style, which is a reasonable phenomenon, all of which are caused by pure manual craftsmanship. This point is also the key to distinguish between manual blown and machine-made products! 3. The value of manually blown glass is generally 8-10 times higher than that of automatic production line utensils. The artificial blown products produced under the premise of reasonable control have unique special value. 4. Due to the double-layer design, the bottom of the cup has a vent hole, which is not a defect. The vent is sealed with a special material to ensure that no water enters the double layer (do not soak in water for a long time). Adhesive points are traces of normal craftsmanship and are not defective or quality problems. Pay attention to this point during use. 5. It is recommended to use rinsing when washing, and do not soak the bottom of the cup in water for a long time to avoid double-layer water or steam. 6. When washing, do not scrub the vents so as to avoid penetration damage. In view of the above tips, any double-layer water ingress during use cannot be returned or replaced. Please purchase after understanding.