This is what Pearl says about this Pearl Hybrid Exotic Snare.

Pearl Hybrid Exotic Kapur/Fiberglass snare drums blend the warmer properties of its 6-ply shell with the bright, controlled frequencies of a thin layer of hand-applied Fiberglass. The resulting shell produces rich, warm stick definition with added crack and projection.

This is a slightly used Snare and is in great shape and really sings.