Toilet Seat: 1) item no: GV-B526 2) material: MDF 3) size: 17#, 18#, 19# 4) thinkness: Cover: 18cm seat: 18cm 5) hinge: Zinc alloy hinge(other hinge available) 6) packing: Window white box 7) CTN size: 39 x 37.5 x 47.5 cm 6 pcs/ctn 8) Remark: 1X20"=2430 pcs 1X40"=5010 pcs 1X40HQ=5880 pcs.