This is an unusual find - a pair of clear glass drink muddlers made by Cambridge glass. If you like Mojitos you need these! Muddlers are used to crush and blend cocktail ingredients (like the mint in your Mojito) to bring out the flavor. Cambridge and other glass companies started making these after the end of Prohibition.
They have an attractive swirled design and they measure about 4 1/2 inches long and they are in very nice condition with no chips cracks or other damage.