EZ-GO MARATHON REPLACEMENT FOAM INSERTS FOR GOLF CART SEAT. THREE-PIECE SET OR INDIVIDUAL BACKRESTS/BENCH SEAT AVAILABLE.The EZGO Marathon Replacement Foam Inserts by Golf Ball Divers are designed specifically for E Z GO Marathon model golf cart seats. These foam inserts are made to replace old, worn out foam, providing comfort and support during long rides. These foam inserts are durable and reliable, ensuring a pleasant golfing experience for riders.