Screw on Toothbrush Replacement Heads Electric Handles -Compatible with E-Series -Compatible with Essence 5000 series -Compatible with Advance -Compatible with Elite -Compatible with CleanCare -Compatible with Xtreme HX3xxx: HX3300 HX3351 HX3500 HX3551 HX3881 HX4xxx: HX4002 HX4101 HX4011 HX4321 HX4472 HX4511 HX4572 HX4573 HX4772 HX4871 HX4872 HX5xxx: HX5610 hx5620 HX5611 hx5631/50 HX5130 HX5251 HX5300 HX5310 HX5350 HX5351 HX5352 HX5400 HX5451 HX5500 HX5551 HX5581 HX5710 HX5751 HX5752 HX5754 HX5810 HX5853 HX5910 hx5911/11 HX7xxx: HX7028/47 HX7001 HX7012 HX7023 HX7022 HX7001 HX7351 HX7361 HX7381 HX7551 HX7553 HX7800 HX7841 HX7881 HX9xxx: HX9500 HX9551 HX9552 HX9553 HX9562 HX9842 HX9882 Other: Advance e-4000/Essence e-5000/Elite e7000/e9000/Xtreme/e3000 Package Included 6 x Screw-on Replacement Toothbrush Heads.