Caster Kit for SKB Shock Mount Roto Shock Cases SKB began making cases in California more than 30 years ago. Today, world-famous SKB cases set the standard for molded plastic transport protection. Musicians everywhere trust SKB cases to provide supreme protection for their most cherished instruments, whether they're on a world tour or on the way to a coffeehouse gig. Players recognize the superior design features and quality manufacturing standards inherent in every SKB case. For your valuable equipment, an SKB case is a wise investment! The SKB-1916 is a roto caster kit that fits SKB Shock Mount and Roto Shock