"This pair of leather shoes is on sale."
November 28, 2017
More exactly, the translation 这双皮鞋打折 seems unusual for a chat, but it is still okay for a brief introduction of the shoes. For example: 今天这双皮鞋打折. And note that 今天这双皮鞋打折了 sounds like you know the shoes were not on sale recently.
January 20, 2018