filter sponge ball Factory directly sell,this product have CE certificate, size,packing ,colour can according to your request filter sponge ball 1) Material: sponge(PU).It have 10ppi,15ppi,20ppi,25ppi,30ppi,35ppi,40ppi,etc.2) Usage:used to filtering or as gift items3) Packing:one pc/opp bag,300pcs/ctn,or according to customers request.4) Size:12x12x12cm,all can follow customers requested size.5) ...