Review on Perixx PERIPRO-303 X4A Trackball With 1.34-Inch Replacement Ball For Perimice And M570 - 4-In-1 Multi-Color Trackball In Red, Purple, Pink, And Lavender With Stylish Storage Box by Owen Houser

I was very impressed with this TrackBall. The iridescence of the particles really added a unique look while performing without any issues. I wanted to know if the Black Ball has the same iridescence as this one since the pictures of this one did not show these vivid colors on the Ebay site. This Ball is advertised as Silver but the color is more of a pale gray, and not a bad gary since it blends perfectly into the M570. These pictures do not do this Ball justice and to get these rainbow of colors requires no special lighting, normal daylight or basically any typical light will allow these colors to appear. As far as weight goes, it feels the same as the original and the tracking is possibly a little smoother and faster.did I mention this Ball looks Great!