Come to OfficeSupplies101 for all of your school and office supplies needs. We have a variety of Binders as well as accessories including Sheet Lifters. A Sheet Lifter is a plastic piece that goes into a binder. It sits in the back of the binder, behind all sheets. It helps lift the sheets so they do not get stuck in the rink mechanism in the back of the binder. Sheet lifters are available in different styles including flat or curved. They are also available in different shapes including straight or boomerang / triangles.