Thank you for looking. This is a square terrarium made of stained glass. The roof is a square pyramid, and I used varied glass with red glass at the top to make it a little cute. The roof is not removable. Size Bottom edge: 13 cm Top edge: 20 cm Height: 20 cm Roof height: 17 cm Total length: 37 cm As this is handmade, I would appreciate your understanding regarding slight size variations and the overall finish. I will pack it carefully and ship it, but in the unlikely event of significant damage, please contact me before leaving a review.