Metal This tablecloth clip is made of#Made of 201 stainless steel, rust-resistant.The clips have smooth edges and good elasticity, allowing them to securely hold the tablecloth in place on the table. This table clamp is easy to install and remove; simply pinch it and slide it into place. Secure the tablecloth in place to prevent it from slipping. Picnic tablecloth clips are suitable for home, parties, picnics, restaurants, weddings, buffets, dinners, etc. Even in the wind, it will not slip off the table. The tablecloth rack is approximately 2.95 x 1.77 x 0.47inch. Suitable for most tables with a thickness less than 1.4inch. This tablecloth clip can securely hold the tablecloth in place, making it a great helper for both indoor and outdoor activities.