1 unit, the gross weight is 1.5kg. carton size: 27*23*15cm , the volume weight is 2.0kg. 2pcs, the gross weight is 8.0kg. carton size: 30*25*20cm , the volume weight is 3.0kg. 12pcs, the gross weight is 14.5kg. carton size: 45*28*58cm , the volume weight is 16.0kg.