Check the listing for details. 3M 05748 Hookit Straightline Auto Body Air File Sander Shoe (2-3/4 in. x 16 in.). Condition: New. Listed at 96.09 USD. Our 3M Hookit Straightline Air File Shoe features a 2-3/4” x 16” size, which fits any standard “Straightline” air file sander with two bolts. This file shoe also lets you instantly upgrade to our Hookit hook-and-loop attachment system for quick, easy changeouts when using Hookit abrasive sheets. Features:Instantly add time- and money-saving features to your air file sanders Sized for 16” Straightline air file sanders with two bolts Hookit attachment system makes for fast, easy abrasive sheet changeouts Hook-and-loop is a great match for high-production environments, where an adhesive-backed disc may be contaminated by dust and dirt Durable rubber face reinforces the abrasive, so it's less likely to yield or deflect when run