Two of ’em actually; an older Ford compact tractor wit a hydrostatic transmission, and a newer Kubota that is a little larger, but a manual. Kubota calls it a “Glide Shift”, which means you don’t need the clutch to shift, but you still have to work the clutch, and come to a complete stop to shift from forward to reverse.
I will add a comment for those that might be considering purchasing a tractor for their horse property:
Look for one with a hydrostatic transmission. A manual is fine for chores like running a mower, or pulling a cultivator tool, but for working the loader (manure management; a Big Deal with equines), the hydrostatic tranny is almost a must-have. Trust me on this one.