I had a request for 10mm liners from a lady in London and I figured if I am making one I might as well make several, so we have added 10mm tools to the mix.
Ten millimeter liners: Pearl (L1-10), Oval (L1.5-10), 10x20mm (L2-10), 10x25mm (L2.5-10), & 10x30mm (L3-10)
Larger tools like these are made with longer shafts because you usually need to hit them harder and the extra clearance from your knuckles makes it easier to swing confidently. These are typically 4.75 to 5.25 inches long.
These can now be ordered on line.