I am selling an SMP F20C saddle, NEVER EVER EVER used (List price on the SMP website is 349 Euros. Sold online for 260-290 on reliable sites). It came standard on my new bike, but I transferred my old saddle over. A top-of-the-range product, excellent finishes, Made in Italy, nylon 12 shell reinforced with carbon fiber, unidirectional "high modulus" carbon rail (size: 7.1 x 9.0 mm) to ensure maximum lightness and strength.

Measurements:
Width: 134 mm - Length: 250 mm
Weight: 210 g

All descriptions on the manufacturer's website apply: this is the premium version, with a carbon rail, NOT Aisi ...