1.The electric toothbrush holder is compatible with all Oral B and iO series electric toothbrush.Toothbrush heads holder can store 1 electric toothbrush and 4 heads.(Note:The product only contains 1 electric toothbrush holder, Other products shown in the pictures are not included.) 2.This holder organizes your electric toothbrush and brush heads in one dedicated space. It keeps your bathroom counter tidy and clutter-free. 3.Fits perfectly and keeps the base clean from buildup by detaching the head each time while cleaning. 4.This toothbrush holder is made of ABS material, and the brush head covers are made of PC material, which is harmless to health.