"STURDY MATERIAL - The toothbrush handle is made of polypropylene, brush head made of brass, stainless steel and nylon brush head.these smooth and manageable brushes are not easy to break or be out of shape, prevents cracking and warping, bacterial growth and so on, can be applied for a long time. THREE DIFFERENT STYLE - The pack includes a brass, nylon and metal brush. Suitable for different surface types,The brass brush Suitable for aggresive cleaning, the nylon Suitable for gentle cleaning,the metal brush Suitable for abraisve cleaning,They will address all your cleaning concerns. COMFORTABLE HANDLE - The handles of each wire brushes are slightly angular, easy to grip and control. bent for a secure grip and for knuckle protection, the convex groove on the inner side of handle gives comfy using experience WIDELY USE - The durable wire brushes are good helpers for shower door tracks, stove tops, tubs, sinks, grout, small engine parts and copper tubing to clean and remove flaking paint, dirt, and rust. they are easy to pop in your toolbox or handbag! So, whether you are going on a cleaning spree at your office or a friend’s place, our wire brush set can go with you. Customer satisfaction: We hope you like our product! Each wire scratch brush is versatile, effective and easy-to-use. However, if you have any concerns, please contact us and we will be happy to assist you"