The BLACKACK-SAN1 is a cheese plate ONLY with hole patterns for both Anton Bauer & IDX battery mounting plates and unlimited options for mounting other camera support hardware. Most holes are 1/4-20. All metal plate and no battery mounting or adapter plates are included. Includes all hardware to attach to the BLACKJACK-1. The BLACKJACK SAN Series of Sandwich Adapter Plates (sometimes referred to as "Cheese Plates") that attach to either the bottom or the top of the BLACKJACK-1 and allow additional mounting of other various camera support hardware with an abundance of laser-cut holes in various configurations and patterns, the uses and options are limitless.</p>