Thank you for viewing. This is a second-owner item. I will prepare the packaging materials once the purchase is made, so it will take a little time. The following is an explanation by the original owner (creator): A custom-modified, thin 22-inch bass drum made by cutting a new, unused 22-inch bass drum shell (manufacturer unknown) to a depth (from front hoop to back hoop) of approximately 10 inches (about 22cm, see photo 14). Parts other than the shell were purchased new and used, and it is a creation of an amateur. It is not suitable for those seeking "authentic bass drum sound and construction" or "perfection." Please purchase only if you understand that this is a junk item modified by an amateur. In recent years, there has been a trend towards smaller drum sets due to limitations on transportation, installation space, and playing volume. Improved transportation convenience: ① Being thin, it fits in half of a 22-inch bass drum case, and toms, cymbals, pedals, etc. can be stored in the empty space. ② The front side is fixed in 4 places, making it easy to remove the front head. Removing the front head during transportation allows you to store more equipment in the bass drum case. Improved installation space convenience: The depth is approximately 10 inches (22cm). Half the depth of a conventional bass drum. Less depth than a small-diameter bass drum. Examples: ① The bass drum of "Pearl Rhythm Traveler version.3S" has a diameter of 14 inches and a depth of 12 inches. ② Products that convert 16-inch and 18-inch floor toms into bass drums often have a depth of 16 inches. Measures against playing volume restrictions: The front head has no holes. By making holes yourself, it becomes easier to insert muting material into the shell, and you can adjust the volume by adjusting the muting. Other: The edge on the batter head side uses the original bass drum edge. The cut side is processed with a file to some extent to make it flat and smooth. Parts such as lugs, tension bolts, hooks, and spurs were purchased new or used. The spurs are used Tama products purchased used. The batter-side lugs, etc., are new. The front-side lugs, etc., are used (metal parts have rust and pits). The hoops were purchased used, carefully filed, and then coated with three layers of acrylic paint.