... 1. for hayrice, wheat straw and etc. 2. for compact tractor's PTO 3. best quanlity and best price mini round ... baler YK-0850A,-0850B & 0870 three models2. need 18-50hp tractor, PTO dirve, 3 point linkage( standard)3. the three ... is just needed to be operated by one driver of tractor, it is suitable for all kinds of native pasture, ... -90Tire size16X6.50-8-4PR16X6.50-8-4PR Tractor Horsepower18-30hp30-50hp