This genuine Toro OEM anti-scalp and wear bar kit is designed for Toro Z-Master commercial zero turn mowers. The anti-scalp deck wheels prevent the mower deck from contacting the ground when passing over raised spots and terrain undulations — protecting the blades from impact damage and preventing the lawn from being stripped. The wear bar protects the leading edge of the deck from abrasion damage on hard surfaces and debris. Both are wear items that should be inspected regularly and replaced when cracked, broken, or worn through. Verify your model and serial number before ordering.