Add versatility to your XT1 or XT2 Enduro Series™ Lawn Tractor, XT3 Garden Tractor, Ultima™ Series ZT1, ZT2 or ZTX Zero-turn, or other riding mower from Cub Cadet's line-up of equipment with a Grass Collector or Mulching Kit. Grass Collectors do just as their name implies; they collect grass clippings as you mow so that they can be disposed of or added to the compost bin. This leaves behind a very manicured-looking lawn. Mulching Kits consist of specially designed cutting blades that finely chop grass clippings and a mulch plug that blocks the deck chute. The grass clippings will help fertilize your lawn.