Conversion
Product Image Aspect Ratio: Why Spec Diagrams Get Cropped
Product image aspect ratio decides which part of your spec diagram survives the crop. The ratio math, the 10% safe margin, and the platform rules.
Field Notes
Tips and guides for adding size annotations to your product images
Compliance
Mercado Libre Image Requirements: 800 px Is the Real Floor
Mercado Libre image requirements from the official seller docs: the 500-1,920 px window, the 800 px zoom threshold, per-category caps, and size-chart rules.
Photography
How to Photograph Building Materials: Shoot the Range
How to photograph building materials so the sample matches the pallet: shade variation classes, gloss units, calibre, and the six images every SKU needs.
B2B & Suppliers
IBC Tote vs Steel Drum: 49% More Liters Per Square Meter
IBC tote vs steel drum, decided with real numbers: footprints, UN codes 31HA1 and 1A1, retest clocks, and how much liquid each holds per square meter of floor.
Returns
How to Calculate Return Rate: 5 Ways the Number Lies
How to calculate return rate without fooling yourself: the formula, the cohort trap, units vs value, and the reason breakdown that shows what to fix.
Size & Fit
Dining Chair Seat Height: The 10-Inch Rule and Its Limits
Dining chair seat height is set by the table, not the chair: keep 10-12 in (25-30 cm) between the seat and the apron underside. Numbers, limits, exceptions.
B2B & Suppliers
H7/h6 Fit Tolerance: Clearance, Not Transition
H7/h6 fit tolerance is a clearance fit, not a transition fit. What H, h, 6 and 7 mean, the ISO 286 numbers at 25 mm, and where the code belongs.
Seller Growth
WhatsApp Business Catalog Image Size: 500 px Is Not Enough
WhatsApp Business catalog image size, from Meta's real 500 px floor to the size buyers can actually read, plus a four-image template for every SKU.
Photography
How to Photograph Large Furniture in a Small Space
How to photograph large furniture in a small space: the working-distance table, the focal length that keeps proportions honest, and a 7-step shoot order.
Compliance
ISPM 15 Marking Requirements: 6 Stamps That Fail at Customs
ISPM 15 marking requirements in plain English: the four parts of a legal stamp, the six mistakes that get containers held, and which wood packaging is exempt.
Returns
Restocking Fee Rules by Marketplace: Who Can Charge What
Restocking fee rules by marketplace: most platforms now ban the fee and the EU never allowed it. The table, the law behind it, and what to do instead.
Photography
How to Photograph Reflective Metal Products: 6 Myths
How to photograph reflective metal products: a polariser barely touches bare metal. Six myths, the physics behind each, and a setup that keeps edges visible.