There are two major types of small drum kits. They include:
Acoustic
This is the main type of acoustic bass drum kits. There are many full-size kits for this type. The smaller kits start at 14 inches and extend to 18”.
Electronic
The electronic drums sets started appearing in the 1980s. The new wave and pop music made is famous, then the dance and electronic music of the 1990s made it more prominent. Electric rigs are much smaller. Some, like Tabletop electronic drums, come without legs. You can simply place them on the table, desk, oven your lap, and start playing; with either fingers or sticks.