Concealed Mounting: No exposed set screws. Materials of Construction: Body - zinc. Escutcheon - brass. Index button -porcelain. Toothbrush Holder and Tumbler - clear glass. Easy to Install SUGGESTED SPECIFICATION: Tumbler/Toothbrush Holder shall feature heavy-duty construction. Shall feature concealed mounting. Toothbrush Holder and Tumbler shall be clear glass. Tumbler/Toothbrush Holder shall be American Standard Model # 6761_. - E29 - © 2008 AS America Inc.