(100) Neoprene Rubber Fender Washers - 1 1/2" OD X 1/4" ID X 1/16" Thickness - 60 Duro - Endeavor Series Washers (100) Neoprene Rubber Fender Washers - 1 1/2" OD X 1/4" ID X 1/16" Thickness - 60 Duro - Endeavor Series Washers 1 1/2" Outside Diameter (1.50") +/- .01 1/4" Inside Diameter (.25") +/- .01 1/16" Thickness - .0625" 60 Duro +/-5 | Use for spacers, vibration suppression, Industrial, automotive, mounting, metals, hobby, robotics, manufacturing and much more.