4Pcs/set Kids Toothbrush Replacement Heads – Soft Bristles and Small Round Heads Compatible with Oral-B Electric Toothbrushes Product Information High Compatibility: These replacement toothbrush heads are compatible with most Oral-B electric toothbrush models, except Oral-B Pul, Pul Slim, , and iO series. Extra Soft Bristles: Features DuPont bristles designed by dental professionals to gently clean hard-to-reach areas between teeth and support oral health. Small Round Heads: Specifically sized for children’s smaller mouths; rounded bristle layout effectively cleans tooth surfaces and helps remove plaque. Color-Coded Rings: Includes removable colored rings for easy identification among family members. Easy Replacement: Replace every two months or sooner as needed. Simple one-click attachment. Compatible Models: All round-head rotating Oral-B electric toothbrushes including: D4510, D12013, D12013W, D17525, D18, D19523, D19545, D20523, D20545, OC18, D8011, D9525, D9511, D20, D25, D30, D32, 4739, 3709 (non-acoustic brush head), 3728, 3738, 3744, 3757, 4731, 4728 Material: POM + DuPont bristles + 304 stainless steel Package Includes: 4 toothbrush replacement heads Note: Colors may vary slightly due to monitor settings and lighting conditions.