Material: These tablecloth clamps are made of stainless steel, strong and durable, and can be used repeatedly and for a long time. Stainless steel has inherent resistance to corrosion, but it will rust and rust in some conditions, but it wont be as fast or harsh as traditional steel. Note: Stainless steel will corrode when exposed to harmful chemicals, salt water, grease, humidity or high temperature for a long time. If the cable clip comes into contact with toxic liquids, clean the tablecloth clip in time and dry it with a soft cloth. Convenience: simple to use, easy to install, shiny and beautiful in silver Wide range of applications: suitable for families, parties, picnics, restaurants, weddings, buffets, dinners, etc., even in the wind, it can keep the tablecloth non-slip Size: Each tablecloth clip measures approximately 3 x 6.5cm. 12 piece napkin holder is perfect for picnic tables or dining tables.