Summary
An official pre-order benefit (POB) photocard of Ruka from BABYMONSTER's 3rd mini album [CHOOM] (YG Entertainment, released May 2026). This is the ktown4u studio POB — a store-exclusive design issued only with pre-orders, never packed inside standard albums.

Visual & Specifications
Standard Korean photocard size (approx. 55 x 85 mm) featuring Ruka in her CHOOM-era studio look. Official YG-pressed card on sturdy photo stock. Please check the listing photos for the exact portrait, finish and back design of this card.

Collectibility
High demand: studio POBs are printed only for the pre-order window, so they are much scarcer than regular album pulls, and Ruka — the group's Japanese lead dancer and rapper — has a dedicated collector base. Great for Ruka bias collectors and OT7 set completers. When buying, confirm the card ships sleeved, ask for a tilt/sheen video to rule out reprints, and be cautious of unofficial copies.