5 x 5 x 0.5 inches

the charger holder is exclusively for Oral-B 3757 charger. (no compatible for other Oral-B chargers)
The charger and toothbrush holder performed as exactly as specified for the charger model and toothbrush heads indicated.
This fit right around the toothbrush charger perfectly. We offer little covers for the toothbrush heads too, ASIN: B01M0UJVMN