FR inline skate frame riser

ED print risers to adapt a K2 speed skate frame to my FR3 skate boot. The front is grooved to fit the wheel, which was the main reason for this mod. The front is 6mm high and the back is 5mm high. If you need different heights, adjust the Z height in the painting software, i used Cura. Suggest painting solid. Printed fine on my Ender 3. I have also added an ungrooved front riser.