1 unit, the gross weight is 1.5kg. carton size: 27*23*24cm , the volume weight is 3.0kg. 4pcs, the gross weight is 6.0kg. carton size: 45*28*36cm , the volume weight is 10.0kg. 8pcs, the gross weight is 11.0kg. carton size: 45*28*60cm , the volume weight is 17.0kg.