20 years experience professional manufacturer plastic adjustable furniture legs furniture riser 1- 4 pieces 3 inch and 4 pieces 5 inch in one box 2- Box Size: 16.5*16.5*38.5cm 3- Six boxes in a carton 4- Carton Size: 51*35*40cm 5- 20"FCL or 40"FCL, LCL all are ok. By sea or By Air or Courier.