LIGHTWEIGHT CAT LITTER: Two-pack of 7 lb bags of Fresh Step Crystals Health Monitoring Cat Litter, which changes colors to help monitor your catàurine pH to better understand your catàhealth | DETECT POTENTIAL ILLNESS EARLY: This pH-activated cat litter crystals changes color instantly to detect irregularities in your catàurine, which could indicate health issues like UTIs and acidosis | ORANGE COLOR (LOW pH): Acidic urine could be a sign of certain types of bladder stones or acidosis | DARK GREEN OR BLUE: Alkaline urine could be a sign of health issues like UTIì bladder stones or Feline Lower Urinary Tract Disease | RED OR PINK: If red or pink, this could be due to the visible presence of blood and severe illness; immediately contact your vet for directions | IF ATYPICAL: If the color of the kitty litter is outside the standard range, this could be due to diet or other factors not related to a health condition; if it persists, consider contacting your vet | MANAGE YOUR CATàHEALTH ONLINE: Scan the QR code or visit FreshStep.com to get help interpreting your catàlitter usage, access helpful highlights about pH urine from a veterinarian, and more | LIGHTWEIGHT AND EASY TO USE: Crystals litter is lightweight and easy to use; one bag equals 25 pounds of traditional clumping cat litter and is easy to pour | POWERFUL 30-DAY ODOR CONTROL: Unscented cat litter with Ammonia Block Technology helps control odors for up to 30 days, keeping the cat litter box clean and smelling fresh between changes