Alzoo Plant-Based Cat Calming Diffuser Refill block-return-exchange use a very mild soap

use a very mild soap and dry them after washing with a soft cloth

Full and Extra Full with 1 1/4 Noseband

no special tools req

and has a 2-way zip

Zip-Off Sleeves

Alzoo Plant-Based Cat Calming Diffuser Refill block-return-exchange use a very mild soapALZOO calming diffuser helps reduce unwanted stress induced behavior in your cat! Features: No synthetic pheromones Plant based active ingredients Great for anxiety, marking, and more Lower stress that can result in excessive meowing, destructive behavior, marking and nervousness Effective up to 1 month Covers an area up to 500 sq ft Recyclable FSC certified printed box Cruelty Free Ingredients: Nepeta Cataria Plant Based Extracts, Glycol Ether, Fatty