TUNER XL POSTS - Features: 6061 alloy forged post with light grooves evenly spaced 15mm apart. The grooves can be used either as cut off guidelines or as indication of seat height once installed. - Sizes: 25.4mm X 200mm or 320mm length. - Diameter: 25.4mm. - Colors: Anodized Black or Polished. - Weight: 4.6oz (200mm).