The hard bristles on the top effectively clean the bottom and edges of the bottle, while the softer bristles a thorough clean. Nylon bristles are designed to be and non-scratch, protecting your bottles from damage. Made of high-quality materials, ensuring robustness and durability for long-lasting use. Ergonomically designed handle prevents slipping, providing comfort and ease during cleaning tasks. Conveniently designed for hanging to dry, saving time and effort in your cleaning routine.