12/16/20pcs Replacement Toothbrush HeadsCompatible for Philips Sonicare Brush Head 4100 6500 6100 7500 5300(Black 12pc)

- Available in 12/16/20-piece sets to meet different usage cycle needs. - Compatible with multiple specific electric toothbrush models, easy to replace and install. - Designed for corresponding models, fitting the body without shaking during use. - Convenient for daily replacement, adapting to regular oral care rhythms. - Multi-quantity sets eliminate frequent purchases for hassle-free use.