Why We Love It Ditch conventional bottle brushes that are made with nylon (a.k.a. plastic) bristles. Instead, this eco-friendly, plastic-free bottle brush is made from sustainable agave fibers bristles. The upcycled wood handle provides firm grip for easy maneuverability while scrubbing bottles. This brush effectively cleans thanks to its hard-textured bristles. Free of enamels, solvents, or toxic chemicals. Fibers are 100% compostable.