Innovative refill design for a next-gen clean Effective: 15x more plaque removal between teeth* 70% less waste:† Compact design, direct vibrations Easy to install: Pop, twist, & lock securely into place Rounded, soft bristles: For sensitivity & hard-to-reach spots Compatibility: Fits any quip Ultra Smart Sonic Toothbrush or Ultra Lite Sonic Toothbrush Effective for 3 months: Replace brush pod every 3 months, like dentists recommend The quip Ultra™ EasyClick Brush Pod Refill Head has a limited 30-day warranty.