Quick Product Facts Uses Label Material Quick Product Facts - 1 000 mailing tabs per roll on a 1-inch core - Each transparent mailing tab is 1 inch in diameter (25.4mm/ 2.54cm)) - Made of glossy crystal-clear polystyrene - Backed with a permanent pressure-sensitive adhesive - Choose either perforated or non-perforated clear wafer seals Uses: The most common use for these durable plastic seals is of course as mailing tabs. They are perfect for sealing envelopes or keeping folded pamphlets closed as they travel and will also help to increase your professional image when these mailings reach your customers due to their high quality look and feel. The optional perforations help when folding the tab over edges and also allow your customers to more easily open your document. What Material are They? These mailing tabs are made from a strong and durable polystyrene which is a crystal-clear resin with a shiny finish. This material increases the durability of the tabs to ensure that they survive the roughest handling (compared to paper tab products). It also imparts a look and feel of quality to the tabs. Our wafer seals are available with a perforation at no additional cost. This perforation allows your customers to break open the seal when they receive your document yet allows your mailing to travel through the system without breaking open. Each roll is carefully produced cleanly shrink wrapped and shipped from the great state of Kansas!