342
CLC 342 Knee Pad: 2 Strap, Polyester Cap, Buckle Closure, Universal Foam Pad
You will find that the 1 inch by 2 inches by 1 inch size works well with standard fittings.
CLC 342 Knee Pads, Flat, Foam, Universal
This unit uses cold-rolled steel, making it stronger than standard sheet metal.
Clc Work Gear 342 Knee Pad, Non-Marring, Foam Pad, Fabric Cap, Quick Release
You will find that the black surface is easy to clean without leaving streaks.