Pen + Gear Laminating Pouches 9 x 11.5 Letter Size 5 Mil Clear 20 Count will protect your items from damaging.The model number is KK21Z11.This set contains 20 sheets and its size is 9 x11.5 suitable for letter size documents.It s waterproof and can helps to seal and protect your documents.And it s compatible with leading laminators you just need to simply place document in pouch and insert into the laminator. Each pouch is great for preserving important memories. Such as photos schedules certificates to-do lists.