Features:

• Functional front wheel block helps you maximize your indoor training
• Choose your difficulty to fit the type of training you want with this 3-level climbing block
• Front wheel riser is easily stackable without losing stability
• Made of composite materials that guarantee the durability of your cycling block
• Wide and solid enough to place your bike on it, while avoiding rocking or moving
• Access 12 different levels of challenge by stacking another Saris climbing riser block into the mix
• For use with any rear wheel-mounted trainer
• Made in the USA