Interdesign 61600 SuctionWorks Waterproof Clock Time will keep ticking away but with this wall suction shower clock you can end your worries about thinking you are taking to long and getting to work late or class. Suction cups secure clock on surfaces such as: glass/mirrors, steel, tile and fiber glass. Great gift for a student. Durable water resistant plastic clock with quartz movement. 3.5" Diameter, 1" Deep.