Loading icon Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Cement Donut - MSCD-MD - Medium (3-1/2 in. Brand: Cement Donut Save 25% Original Price $16.95 Current Price $12.71 | / SKU: MSCD-MD Inventory Locations: Medium - MSCD-MD - $12.71 Small - MSCD-SM - $12.71 Medium - MSCD-MD Small - MSCD-SM Size Chevron down icon 10+ day delay 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Medium (3-1/2 in.) This is a green-dyed - concrete donut for sprinkler heads. The purpose of the donut is to displace the weight of a vehicle or lawn mowers tire. This will aid in the protection of the sprinkler head and the pipes below the head.