Alienation Slider MikRib Pivotal Seat  E-mail this product to a friend Details:  Slider System; Offers fore/aft positioning, Nylon Fiber Base, All Round Use, Light & Narrow with Flare, Hollow Bolt Model:  Black Pivotal, White Pivotal Size:  210mm (L) * 110mm (W) Weight:  260g Colors:  Black Synthetic Cover; White Nylon Vertical Stitching, Black Base w/white Baseline, White D-Chip, Lightweight Padding Colors:  White Synthetic Cover; Black Nylon Vertical Stitching, White Base w/Black Baseline, Black D-Chip, Lightweight Padding This product qualifies for quantity discount pricing.what's this?
Alienation Slider MikRib Pivotal Seat Colors-Black This product qualifies for quantity discount pricing.what's this?        Alienation Slider MikRib Pivotal Seat Colors-White This product qualifies for quantity discount pricing.what's this?