These are a pair of powermesh glove linings, perfect for do it yourself prop makers!
They are intended to be used as a "lining" or "backing" for silicone, foam-rubber or latex gloves. They help protect against tearing and/or distortion of shape from overstrecthing of these flexible materials.
These particular gloves are oversized, as they are not intended to hug the hand. They are intended to leave breathing room for comfort and ease of use.