Richard Pole Sander, Heavy Duty Lightweight, 3-1/4 in Overall Width, 9 in Overall Length, Polypropylene Abrasive, Female Acme Thread Attachment – Hansler Smith
Amazon.com: ALLWAY UHS Soft-Grip Heavy-Duty Hand Sander with Stainless Steel Clips : Everything Else
Earthstone International 313SS Rough Wood Sanding Block - Walmart.com
Warner Sanding Block in the Sanding Blocks department at Lowes.com