A convex or "positive" lens is thicker in the middle and thinner at the edges. Convex lenses project a real image behind the lens.  It is used to focus, collect and collimate light. The convex lens is for those who are farsighted.

Every product is strongly packed by carton box with foam inside. Separate safe package avoid broken

The convex lenses will be delivered by International Express: Fedex, TNT, UPS, EMS, DHL.

It is also according to customers' requirements. The economic affordable international express method is preferred.