The shorter one was purchased 20 years ago from an antique shop. Length: 190mm. It appears to be made of stainless steel. There are no markings. The shorter one was found at a flea market about 2 years ago. Length: 205mm. It tends to blacken, so it's likely silver-plated. It has been polished with silver polish. There are no markings on this one either. The straw part is slightly oval. Neither has been used since purchase. Also, the inside of the straws have not been cleaned, so please clean them with a thin brush before use. These are unusual spoon-muddlers. How about using them for making cocktails? Thank you for your understanding.