John Deere belts are designed with the use of quality materials to help withstand the toughest conditions. The John Deere GX23110 deck belt has a flexible core this allows for proper routing so it can stay in the pulley groove on the deck. The GX23110 belt has a cloth cover material to ensure smooth engagement for reduced stress on belt and mowers deck. The John Deere GX23110 belt is used on the left hand side of the mower deck and GX23111 is used on the right hand side as you are sitting on your ride on lawn mower.