These nail brushes' handles are made of sturdy plastic which are not easy to bent. The bristles are made of flexible plastic, not too hard and not too soft which won't scratch your skin. Durable for long-term to use. The finger nails cleaner brush is suitable for the kitchen, bathroom, garden shed sinks, which is perfect to remove dirt from hand, fingertip and foot. They are small and lightweight, will not take up much space, easy to take and store, you also can put it in your travel bag or handbag when you travel or on a business trip if you need.