I had that foam with the space saver. I bought a full sized spare and downsized to 17". I bought the Skoda Octavia 3 RS insert kit for 19" 5E0093860C= £51 inc VAT as they do not do one for 17" .. only 15" and 16". This comes complete with jack etc. I could have cut this one down to fit 17" or 18" rims.. but to be honest I just stole the shortened central nut that holds the wheel in and then put the tools in a roll of cloth which meant I could fit my proper tool kit and a few more bits in there with the floor in the low position. So I have a space saver with foam insert and 19" full sized kit that I could do with moving on in Aberdeenshire..