Pad for needle felting

I went to the craft store to find a pad for needle felting. The ones I’ve seen in demo videos are black and very thick. All I found at the craft store were white and looked like seat cushion pads. Does anyone know if these would be okay or is there something better?

Any kind of dense foam or sponge should work – the color doesn’t matter. The pad is basically there to keep your fingers and work surface from getting stabbed by the needles.

Right. I use a large sponge that is marketed for washing cars. Light and inexpensive.