Are there any hidden costs?

No. Quoted price = final invoice price (excluding VAT which is line item separately). Itemized line items: per-unit cost × quantity = subtotal; setup fees (only for new tooling/screens, disclosed upfront); strike-off sample cost (credited against 200+ unit orders); rush surcharge (only if elected); shipping cost (per destination); VAT line. We disclose: (a) any tooling/setup costs upfront in quotation, (b) any potential customs/duty for export (estimated, but actual depends on destination), (c) any rush surcharge if requested. We don't add 'admin fees', 'handling charges', or surprise items.