NOTE: ICD recommends the use of re-rings. Although some drums can go their entire lives and never sustain damage, we feel the risk is too great. Although re-rings do cause small acoustical changes, these changes are subtle, and can make the drum sound better in some cases.

Reinforcement Rings (Re-Rings)Defined
Reinforcement rings are plys that are added inside the drum shell to add strength and stability. They are installed before the bearing edges are cut. The inside bearing edge chamfer is extended along the re-ring profile. The mating edges of the re-ring are typically lap jointed to provide an unobtrusive visual appearance.

To Re-Ring or Not to Re-Ring, that is the question:
Re-Rings are not strictly necessary for toms (particularly small toms). They add mass to the shell (thereby raising the pitch), so those prefering a lower tone may wish to leave them off. The advantage to re-rings is the strength they add to the shell at the bearing edge (the area of the drum that receives the bulk of tuning pressure). Therefore, the question that needs to be answered is ". . . how are these drums going to be used." If the drums are going to be set up in a studio with minimal setup and teardown, and you prefer lower pitched tones, you may want to leave the re-rings out. However, if you're a road warrior, and setup and teardown (this is when most drums are damaged) quite a bit, re-rings are a virtual must.

NOTE: ICD recommends the use of re-rings. Although some drums can go their entire lives and never sustain damage, we feel the risk is too great. Although re-rings do cause small acoustical changes, these changes are subtle, and can make the drum sound better in some cases.