Specification: Material:Plastic Size:150*138mm Weight:164g Voltage:3 Current:2 Battery Capaclty:650mah Charging Time:≤3h Color:Black Use:Smoking Supplies Features: lt would be tailor-made to numerous bottle sizes. No Contact Smoke is extruded within the process the tube uniformly. Note: 1 allow 0-1cm error because of manual measurement. pls ensure you don't mind earlier than you bid. 2 to the variation between various monitors, the picture won't reflect the actual colour of the item. Thank you.