This item is not available in the USA unless by special order. You can imagine the charges when exchange rate is added (the USD is extremely cheap compared to European currencies, meaning it will be more expensive than you think) and add the shipping and insurance.
Dimensions of aquarium: 20 x 20 x 20 cm
Weight of aquarium without water: 2 kg
The aquarium can hold 8 litres of water without a plant centrepiece.