Hand application may be easier with a practical gap between labels, while a machine applicator may need precise spacing, roll direction and a particular format. Confirm the finished dimensions, face material, adhesive, sheet or roll supply, core details if relevant and any protective finish in writing.
Keep the approved proof with that specification so nobody has to rely on a remembered phone conversation. A small trial run can reveal lifting, awkward peeling or poor alignment before a larger order is placed. For broader questions, advice on label materials can help frame those decisions before the artwork is finalised.
