The Canon SCREEN, FOCUS 5PCS/BOX LQ is a focus screen accessory identified by MPN CY3-1771-001. Its listing describes it as a box of five pieces, suited to keeping matching focus-screen parts together for camera servicing or replacement work.
The product name and part number identify this specific Canon item. The pack quantity is five screens per box; no camera compatibility or additional contents are specified in the listing. The listed warranty is three months.