Tom drum

A tom drum (also known as a tom-tom) is a cylindrical drum with no snares, named from the Anglo-Indian and Sinhala language. It was added to the drum kit in the early part of the 20th century. Most toms range in size between 15 and 50 centimetres (6 and 20 inches) in diameter, though floor toms can go as large as 60 centimetres (24 inches).