I just found the best sanding block I've ever used. Uses 1 1/2" strip x 11" of paper. Adjustable tightening.
makerworld.com
Sanding Block - Adjustable tensioner - Free 3D Print Model - MakerWorld
Download this free 3D print file designed by MXDesign. 🛠️ Sanding Block Pro – Adjustable & ReinforcedA robust, practical and versatile sanding block with optimized threading for long-lasting strength.No screws, bolts or hardware required - fully print-and-use. 🔧 Dual tightening system:A top...