EFFECTIVE GUM HEALTH IMPROVEMENT: Brushmo standard toothbrush heads are proven to reduce gingivitis up to 10x better than a manual toothbrush. WIDE COMPATIBILITY: Snap-on system fits 2 Series Plaque Control, 3 Series Gum Health, DiamondClean, EasyClean, FlexCare, FlexCare+, FlexCare Platinum. HealthyWhite and HydroClean Brush Handles. 8 PACK INCLUDES: 8 Teeth Whitening Replacement heads. HIGHEST HEALTH & SAFETY STANDARDS: OEHHA Prop 65 approved Brushmo toothbrush heads are made at the highest health and safety standard of oral hygiene technology. 100% SATISFACTION GUARANTEE: If you are unhappy with your purchase for any reason, you may request a refund or exchange within 365 days, no questions asked. EFFECTIVE GUM HEALTH IMPROVEMENT: Brushmo standard toothbrush heads are proven to reduce gingivitis up to 10x better than a manual toothbrush.