... ,good quality, size,packing ,colour can according to your request. colorful sponge1) Material: sponge(Polyurethane).10ppi,15ppi,20ppi,25ppi,30ppi,35ppi ... ,material,packing,etc.manufacturing experience 12 years.Strong production capacity.In October 2009, our factory have obtained quality certification :ISO9001: 2008 ... , 70% balance T/T against the copy of B/L.. colorful sponge manufacturer in Yiwu China