9 Dazzling Colors: package includes 18pcs colorful spring O rings in 9 colors--yellow, green, orange, pink, white, blue, rainbow, etc; each color 2pcs; the surface is dazzling and has a glowing effect, bright colors, suitable for decoration.O Ring Clips: the keyring clasps are about 0.79 inch(20mm) in diameter, 0.14 inch(3.5mm) in thickness, 7 gauge, inner diameter: 0.51 inch(13mm). The plastic container box is about 7.4x7.2x1.7cm(2.9"x2.8"x0.6").Quality Material: these spring O rings are made of zinc alloy, lightweight but durable, surface coating resistant to corrosion and rust and high strength, popular DIY accessories in daily life.Easy to Open and Close: the hook clip designed with built-in spring, open and close smoothly, quick release, return to its original size and shape, making the item very easy to use and convenient to take along.Wide Application: the O rings are suitable for making harnesses, clothes and luggage belts, handbags, belting, lanyards, flat cordskeychains, dog collars, webbing and lanyard, hang cards or other items as you like.