CycleOps Fluid 2 Trainer (Black, Fluid 2 & Climbing Riser Block Set) This is A Set With a Climbing Riser Block Set Built with 100% recyclable, non-rusting materials Made in the USA - Adjustable footpads for a stable ride on most surfaces Made from rugged 2-inch round 16-gauge steel Comes with a lifetime warranty from cycleOps- Best selling trainer on the market