Our stamps are made of PP material, wear-resistant, fall resistant, strong and durable, with a cover, dust and dirt proof. The roller is made of polyester rubber, which is slightly elastic and can print ink on paper. The 0.06 inches wide roller is perfect for covering large swaths of private information quickly and cleanly. Our stamp is the latest upgrade. It has a one-time molding printing skin, no gap, no spacing of letters, and the density coverage effect is better Ink quickly dries. Stamp works well on all regular paper, envelopes, and package addresses. One swipe and the info is covered, no need to go for a shredder. By gently pulling the roller stamp, you can easily protect your personal privacy information.price over 15000 pcs is by sea shipment.