How does the volume discount work?

We offer volume discounts on prescription glasses and sunglasses as follows:

- Buy 2 pairs of prescription glasses/sunglasses get 15% off the whole purchase.

- Buy 3 pairs of prescription glasses/sunglasses get 20% off the whole purchase.

- Buy 4+ pairs of prescription glasses/sunglasses get 25% off the whole purchase.

Offer cannot be combined with other discounts.