Nutri-Vet Grass Guard MAX with Probiotics for Dogs, Liver Flavor Chewables, 365ct, Safety-Sealed Twin-Pack w/Travel Gels All natural supplement promotes a healthy pet and spotless lawn. Unique blend of probiotics, digestive enzymes & amino acids help reduce lawn burn. Easy to feed chewable with the great liver flavor dogs love! 1-Year Date-Code Guarantee! Made in the USA. BONUS: Includes 2 free travel-size probiotic gel.