Flexible handle Brass bristles Easily removes chalk and debris Safe on stainless steel, chrome plated, and coated barbells Slightly more aggressive than the Nylon Barbell Brush Durable construction Also cleans pull-up bars, KBs, or DBs Durable Brass Bristles are slightly more rigid than our Nylon Barbell Brush and a touch softer than the Steel Barbell Brush. Flexible handle contours around any barbell. Brass is ideal for expensive barbells and can be used on chrome. Brass will not harm coated bars when used properly. Protect your investment and keep it in perfect condition. Save time and energy by cleaning your gear efficiently.