The Ritchey WCS Carbon 1-Bolt UD Matte seat post uses the so-called one-bolt system. This makes setting up your saddle extremely simple. The wide clamp distributes the load across the saddle rails more evenly.
The Ritchey WCS Carbon 1-Bolt UD Matte is made using UD carbon monocoque, making it lightweight, strong, and reliable. Easily adjustable and the nice finish makes this a great seat post.
Please note: the one-bolt system clamps onto the saddle rail from the side. This means you can only use saddle with round seat rails measuring 7x7 mm. Do you have a saddle with 7x9.6 mm (Fizik-standard), 8x8.5 mm (Selle Italia-standard) saddle rails, then you'll need a different saddle clamp.