Edge band as a product has compatibility limits with the panel: the edge band width must equal the panel thickness, the color/décor must match. When a material is selected, the system shows the compatible edge bands from the company catalog. Possible variants: a universal edge band (fits any panel of its thickness), an edge band tied to a single material, an edge band paired with a specific material. The client can also have own edge bands (outside the shared catalog) — they are added separately.