The narrow profile of the S106BH Vacuum Lifter makes them an excellent tool for pulling glass sheets from narrow storage locations, as well as for general purpose handling. Designed to work with flat or curved glass, the rubber pad has a dual seal system to protect against vacuum loss. It is also handy for pulling sheet materials from storage racks. It is supplied with a vacuum pad protector. Pad is 5-7/8" (150 mm) in diameter.