Doctor Developed Full Length Arthritis Copper Compression Gloves and Doctor Written Handbook (Medium)

I get very cold fingers (Raynauds) when out and shopping do they keep your fingers warm especially in the winter

Much too small how do I exchange?

I want to use these for golf. Are they suitable instead of a golf glove. What are the sizes for small and medium as I have long fingers but small wris

I cant see a sizing chart