[Perfect Brushing Partners] The brush heads match the Wave's powerful core technology and ability to align with the dentist-recommended Bass brushing method, allowing them to better conform to the surface of teeth for a comprehensive clean. [TÜV Rheinland Approved] The brush heads have been certified by TÜV Rheinland, ensuring that they're both high quality and safe. [High-Quality Bristles] The Gum Care brush head uses ultra-thin PBT bristles that reach deep into the gaps between teeth while still being gentle on gums, and the Super-Clean and Ultra-Whitening brush heads use premium DuPont bristles for incredible cleaning power. The brush heads are also equipped with 90-day Reminder Bristles that let you know when it's time for a replacement. [Dynamic Balancing] The brush head features an innovative metal counterweight attached to the back, allowing for stable oscillations, reduced noise, and protective gum care, which all adds up to a more comfortable brushing experience. [A Fit for Every Smile] The three brush heads each suit different oral care needs. The Gum Care brush head are gentle on teeth and gums, the Super-Clean brush head reaches deep into gaps for an efficient clean, and the Ultra-Whitening brush head offers powerful cleaning to help brighten those pearly whites! What's Included: Laifen Gum Care Brush Heads (3-Pack,Transparent)