Holographic collar with large O rings and loops of chains riveted in place. choose from either -Purple, which is a kind of lilac colored, PVC coated fabric with a white felted backing, or -Clear, which is a transparent vinyl.both colors have a rainbow sheen to them and silvertone hardware. Both adjust with snap closures in back, between about 12 to 14.75″ around when closed,so are best for necks about 11″ to 14.25″ around.Main body about 1″ wide.