The Healthy Human Water Bottle Cleaner 3-Piece Bamboo Long Brush Stainless Steel Cleaning Set is the perfect solution for keeping your water bottles clean and fresh. The set includes three long brushes made from Tampico fiber, a natural and non-toxic material sourced from Mexico. These brushes are not only soft and gentle on your water bottles, but also strong enough to effectively remove any dirt or residue.The handles of the brushes are made from the highest grade 304 Food Grade Stainless Steel. This ensures that the brushes are durable and long-lasting, making them ideal for cleaning sports thermos bottles. The extra length of the brush handles allows for a thorough cleaning, reaching all the nooks and crannies of your water bottle.In addition to the stainless steel handles, the brushes feature bamboo wood bristles. Bamboo wood is known for its eco-friendly properties and water-resistance