PU/laminated/intensively machine glue volleyball Material: superior PU, imported glue,rubber bladder Weight :260-280g PU/18panels/ laminated/intensively machine glue volleyball Description:size 5,8&18 panelsMaterial: superior PU, imported glue,rubber bladderWeight :260-280g ... in mid and high-level market.Compared with the machine glue,it greatly improves its quality and extends its service ...