Silhouette Dynamics Colorwave Core. Accent Rings 5500 Eyeglasses Chassis made by Silhouette are Unisex Eyeglasses. They have a Square shape, and come in 13 colors, which are black, brown, brown matte, creme, gold, green, grey, grey matte, petrol, red, rose, silver, and violet with 6 sizes, which are 17_135, 17_140, 19_140, 19_145, 19_150, and 21_150.