The CHAMP TwinPro Club Brush features two interchangable brush heads using CHAMP's patented Q-LOK System: Brass (for irons) and Black nylon (for woods). There is a spring cord line included to attach the TwinPro to your bag. Make the most of every swing, clean your clubs after every shot. This tool is equipped with the CHAMP Q-LOK fastening system for changing spikes. Look for the Q-LOK symbol on the finest shoe brands worldwide.