I bought the lens for one year at a reasonable price. I would have been cheaper if I bought it as a set of 4 items. I have a lot of expiration date. (It is different for each product.) It is unique that three are sold only in Singapore and one is sold only in Hong Kong Macau. It took me a while. It took me a long time to ship from Singapore.

I do not have to worry about the lens for a while. ㅎ The shelf life has been abundant and well shipped. It takes about two weeks ~ Thank you ~

The price is much cheaper and I would like to use it often ...