Oral B Precision Clean Brush Heads (2 set) Electric Toothbrush Refill, EB20-2. Cleans deeper than a regular manual toothbrush. High-Low Bristle and Interdental Tip system provides up to 5X more plaque removal along the gum line and penetrates hard-to-reach areas Indicator bristles faded ½-way indicate time to replace the brush head Fits Oral-B® ProCare® SmartSeries 5000 w/SmartGuide™, Pro 1000, 3000 & 4000 Series; Vitality Precision Clean & Dual Clean; AdvancedPower® 400 & 900 Series Base Material: 100% Plastic Country of Origin: Made in US