A lot quoted by gross weight is not a promise of installable hair. The gap between the two is where a salon loses money quietly, and it is measurable before the next order is placed.
1. 1. Where the Weight Actually Goes
Bundled retail weight includes the band, the wrap, sometimes desiccant, and the moisture the fibre absorbed in transit. None of that installs. Ask for the net per-bundle weight in the specification, not the carton weight on the shipping label.
2. 2. Weighing a Shipment Correctly
Weigh three bundles from different cartons on a calibrated scale the day they arrive, before steaming or washing. Record the number against the invoice weight. A spread of more than a few grams between bundles means the packing is not controlled, and the average hides it.
3. 3. Turning Weight Into Cost Per Install
Divide the landed cost by the number of heads the shipment actually covers at your usual density. That single figure is comparable across suppliers; cost per bundle is not, because bundle sizes differ.
4. Applying This to the Current Line
The figures above only matter against a concrete specification. For this category we are working with KAMA 100% Virgin Human Hair Bulk for Crochet Boho Braids 100g Unprocessed Natural Braiding Hair Extensions at 35.0~69.0 โ record the same measurements for it on receipt and compare them with the batch you last accepted, rather than with the listing photograph.
5. What to Monitor
Re-weigh at each replenishment rather than once. Packing drifts with seasonal humidity and with line changes, and a supplier who passed the first audit is not automatically passing the fifth order.
Net Weight vs Usable Yield Reference Set
In-stock wholesale line used as the measurement reference for net weight vs usable yield.