They are precision sized for wide dual-panel horizontal booklet cards, including baseball/basketball jersey patch, dual-side autograph and multi-panel memorabilia booklet cards, not regular vertical single trading cards.

Acid and PVC plastic release corrosive substances that fade autograph ink, discolor fabric patches and leave permanent yellow stains on high-value booklet cards during long storage.

Thickened flexible polypropylene with widened side margins prevents curling, creasing and edge damage even for thick fabric memorabilia horizontal booklet cards.

Each transparent retail bag contains 100 horizontal booklet sleeves. The top circular hanging hole allows hobby shops to hang packs directly on retail display racks.

We offer full-color custom printed retail packaging bags, custom brand logos, adjustable sleeve thickness, modified horizontal width and flexible pack quantities for wholesale orders.

All inner surfaces are smoothly polished with soft rounded edges, no sharp burrs to scrape signatures, holographic foil or delicate fabric inserts during repeated use.

Sample test packs are available for all buyers, you only cover international shipping fees. All sample costs will be fully deducted once you confirm formal factory bulk wholesale cooperation.