Half off, which works out to $25 a mask. My experience with Elevatione has always been incredible, but they are usually insane expensive. If you've never heard of them, they are a indie skin care brand, with stores in Europe and Asia, that are a mix of retail and beauty centres offering different kinds of treatments. Their packaging is amazing, and they stand behind their products.
Even at $25 a mask, it's still a little expensive, but not crazy. Seems to be part of a mother's day promotion.
Shipping is free, and they offer a full 30 day return policy, including opened/tried products. (PS. I've returned a few items there over the last few months that didn't sit well with my skin, and they paid for return shipping and were very responsive and quick about the whole thing).