Design We can assist you with all aspects of design from concept to reality for the final product to showcase your products and company. Send us a simple concept sketch with the desired dimensions and layout or a technical drawing and we can assist you. With an order we will include a plain mockup to ensure fit, form and function for your approval. With lithographic printing we will add a low-resolution proof for graphics approval followed up by a high-resolution sheet proof for final color approval. No surprises with Petra and Holum, you will see your product before it goes into production.