Define the product first
Write down what the pack will contain, how the customer will dispense it and the intended fill volume. A pleasing silhouette is only one part of the decision.
Confirm the complete closure
Discuss the neck finish, pump or cap, liner and dip tube together. Request compatibility and leakage checks using your actual formulation before approving a production specification.
Make comparisons useful
Shortlist a few designs and record their catalog references. Ask for confirmed dimensions, available finishes, minimum order and lead time for each option.