OTXEER reusable non-straight glass tubes
? Length: 20 cm / 8 inches
? Outer diameter: 10 mm
? Inner diameter: 7 mm
? Wall thickness: 1.5 mm
? Quantity: 6 pcs
? Color: Multiple Color
? Material: borosilicate glass
? Notes: Because the glass tube is completely hand-made, there may be dimensional errors.