• Durable and flexible: flexible neck for easy reach and deep cleaning inside the bottom of bottles. The brushes can be freely bent, allowing you to always find the right tool to clean gaps and difficult angles. • No more scratches: the bottle cleaning brush dries easily compared to traditional brushes, lint-free and sanitary. The brush bristles have moderate hardness, ensuring that dirt is removed without scratching the inside of the bottle. • Wide application: long and firm handles provide a comfortable and non-slip grip, allowing you to control the brush freely and perform cleaning easily and quickly. Ideal for home, kitchen, and chemical laboratory cleaning, including baby bottles, champagne glasses, coffee filters, cups, feeders, vases, kettles, straws, teapots, and more. • Storage and keychain: each brush comes with a keychain for easy handling and extraction from narrow tubes or bottles, as well as being easy to hang for drying and storage. • Package includes: 4 glass bottles, 1 bottle brush, and 2 straw brushes.