Product Description: Each spring is equipped with a screw for better durability and long service life. Avoids spring from becoming loose and falling out. Ensures the clamping force Such a practical and convenient plastic spring clip is a great gift, you can give it to your family, friends, photography lovers, crafters, carpenters Product Specifications: Material: Plastic Size: Spring clamps is 3 inch, maximum opening mouth between the inside edges is 35mm/1.37inch Color: Black Package Included: 10 pcs * Mini plastic spring clips