What are the features and specifications of a 4 piece drum kit?

A 4 piece drum kit typically includes a bass drum, a snare drum, and two tom-toms. The sizes of the drums can vary, but common sizes are a 22-inch bass drum, a 14-inch snare drum, and tom-toms in sizes like 12 inches and 16 inches. The kit may also include hardware such as cymbal stands, a hi-hat stand, and a bass drum pedal. Additional cymbals and accessories can be added based on the drummer's preferences.