This 2.875″ wide hanger has two pre-drilled holes to be used on its own or added to our aluminum rail system. The small rubber clamp will fit products 0.8” to 1.2” across, which is most of our color coded items. See our large rubber clamp for shovels, larger handles and paddles. This clamp contains rubber, which can lose its elasticity or even break if repeatedly exposed to oil. If you need a hanger for use in an oily environment, ask about our one piece hanger, which is not affected.