A complete set is an organized group of pieces. List each piece’s width, clip count and intended position within the layout. If the proposed set includes repeated pieces, identify how many are supplied. This gives the buyer and manufacturer a shared design instead of leaving the supplier to choose a layout behind a weight label.
A larger total weight can come from more pieces, different widths, more hair on existing pieces or additional construction material. Those options are not equivalent. Ask what changes when moving between your proposed weight versions, and check whether the packaging and product information still describe the actual set.

