Oral B Precision Clean Replacement Brush Heads, 8 pack CL_193968200855 Wood button and elastic closure US Shoe Size (Youth):11 Wood button and elastic closure Suede heel counter Topically applied water repellent treatment 17mm Twinface sheepskin upper Wool lining or those days you want to support your team in ultimate comfort 8 Pack is a 1 Year Supply For 2 People Color Coded Rings to Remind 2 Users to Change Brush Head Every Season Features +29% More Cleaning Bristles and New Trim Pattern for Improved Tooth Cupping Dentists recommend changing your brush head every 3 months Indicator bristles fade half way to signal it is time to change your brush head and are used here only to identify the products being sold