simple" brand flash foam specially for flash stamp it is our patented product. it with high quality compared with others "simple" brand flash foam produced by our factory . It contains even cellular and glossy surface and will never deformed or shrinked. It can control the ink move into the absorbing materials evenly. available size:450x178mm, 7mm 4mm and 3mm in thickness also we have the most advanced technology to help the clients process it according to theirs stamp size. 7mm 5pcs packed in a bag, 4mm and 3mm 10pcs packed in a bag.