Para empezar el teclado está hecho de materiales de una calidad muy buena, es solido, no se mueve para nada de mi mesa, las teclas están hechas de plástico muy agradable al tacto y el teclado está hecho de aluminio. Las regresé . Now they are perfect. Great shoes my boyfriend loves them but they run about half a size too large. Less stiff sole and fabric than the Keens. I ride the bus and I wanted something that drowns out the loud bus and the ?interesting? people that ride it. Muy buen sistema de sonido. TIP:-Shake the product before use if you go a while without using it. I have professional experience with Cherry switches, and consider them the best. Slipping these on is like standing on lovely little clouds.