Made with a special rotational molding process that gives added strength and durability to the corners. Provides water resistance that non-roto molded cases cant match. Includes XLs limited lifetime **against cracking. The Protechtor Classic Series Tom Drum Case is made with a special rotational molding process, which gives added strength and durability to its corners. It also provides water resistance that non-roto molded cases cant match. The Gator case comes with XLs limited lifetime **against cracking.