Every PUCK™ comes packed with a punch of lavender-scented baking soda, powered by Arm & Hammer™. Whenever you’re not using your STEP™ or PAIL™ diaper pail, fear not! PUCK™ works while our pails’ lids are closed to ensure everything remains fresh and free of unwanted odors. It’s recommended that you replace PUCK™ every 60-90 days for best results, and it can even be used beyond the pail (e.g. in garbage cans, diaper bags, etc)!