Roundup For Lawns Crabgrass Killer RTU Liquid 1 gal Garden Wall Blocks The included deep hex chuck The included deep hex chuck allows you to recess the bit further back into the head of the tool blended together or mixed with expanded clay pellets Kills the toughest crabgrass and grassy weeds without harming lawns Assembly Code N Country Of Origin US Delivery Offered Y Department Number 7 Display Only Item N Dollar Velocity Code A Feature 10 Text Feature 1 Text Kills the toughest crabgrass and grassy weeds with Feature 2 Text Designed for use on northern lawns: kentucky blueg Feature 3 Text Weeds will turn white 4 7 days after application