The Rii RK100+ keyboard features a large size with a rainbow LED backlit design and black keys, providing a visually appealing and immersive typing experience. This USB wired mechanical keyboard is designed by Rii and comes in a sleek package with dimensions of 17.6x6.93x1.54 inches. Weighing 1.65 pounds, this keyboard is a stylish and functional addition to any computer setup, offering a comfortable and efficient typing experience for users.