For Silver Reed/ Singer/ Studio/ Empisal/ Knitmaster.Standard Punchcard and Electronics Knitting Machine Models:
SK210, SK218, SK260, SK270, SK280, SK360, SK550, SK560, SK580, SK600, SK700, SK740, SK840
How to replace Sponge Bar:
With a flat with a screwdriver to pry open layering two head arrow blank holder, take out the white plastic head, the original article sponge out clean, with glue, put on the new sponge bar, and restore the white plastic head back into the original position and blank holder pressure pry.