Usually it doesn't matter which head you put on which side, but some factories give you two distinctly different heads. You can usually tell which one goes on top (the batter head), but if you can't tell then it doesn't matter.or Tom Assembly

A standard drum set consists of five drums: 12" and 13" mounted toms (also known as rack toms, tom toms, or just toms), 16" floor tom, 22" bass drum, and a 14" snare drum.

Fit the rim onto the head so it surrounds the metal ring around the head. Align the ears (the flanges with holes) over the lugs as shown.

Insert the tension rods through the holes in the ears and thread them into the swivel nuts. Finger tighten the rods for now; you can tune them later (see section on Tuning).

Turn the drum over and do the other side. When done, insert the floor tom legs into the leg brackets and secure them about halfway up.