CT&reg; Brand New Replacement Plastic Travel Case for Braun Oral-b Toothbrushes D12db4510d16 D20oc20600650 and so on (White, Medium) Fit with all Oral-B handles less than 19.5 cm long. Small size for D10D12DB4510KDB4510, Medium size for D16 D20OC20600650700800100020003000, 4900,The Medium is also fit the D10D12DB4510KDB4510. please confirm your toothbrush model and choose correct size case. This replacement travel case is manufactured by COOLTOOL exclusive for Braun Oral-B selected model toothbrushes.