The short answer
Choose Express when you need the item soon — it usually arrives in about 12–15 days from purchase. Choose Economy when price matters more than speed — it usually takes about 3–4 weeks. Economy is switched on at checkout when it’s available.
How Express is priced
Express covers freight and customs clearance, both charged by weight in small weight blocks, plus a flat delivery fee to your door in Sri Lanka and a flat service charge per item.
How Economy is priced
Economy replaces freight and customs clearance with a single postal charge by weight, plus its own flat delivery fee and the same service charge. For light items the difference is small; for heavier items Economy can save more.
Both include customs — nothing to pay on arrival
Whichever you choose, the total you accept is the total you pay. There’s nothing more to pay when the parcel arrives unless your order changes after purchase.