A premium aluminum oxide, load resistant, 3M™ Hookit™ Abrasive product constructed on a durable film backing. It is fast cutting, long lasting and provides a uniform finish. 3M™ Hookit™ Film Discs are excellent for contoured surfaces. Use 3M™ Hook and Loop Attachment for easy re-use. 3M™ Hookit™ Film Discs 375L deliver outstanding tear resistance, flexibility and a consistent finish on a variety of surfaces. Made of a premium aluminum oxide abrasive grain with a durable film backing, this product cuts fast and lasts long. It also features a load-resistant, open coating construction that helps reduce clogging and extends the life of the abrasive. 3M™ Hookit™ Film Discs 375L are also ideal for contoured surfaces and designed for use with a random orbital sander and a 3M™ Hookit™ Backup Pad (sold separately). It comes in a range of grades for various woodworking and metalworking applications ranging from rough sanding to very fine finishing.