Set of replacement un-notched elements. General purpose heavy duty “flat style” elements un-notched for wires sizes 25AWG to 43AWG (0.46-0.056mmø). Width of elements 0.500 (12.7mm) - See more at: http://www.eraser.com/products/replacement-parts-product/un-notched-elements/#sthash.MRYaMjmD.dpuf