Tension Climbing Grindstone

The Grindstone is a precision-engineered edge training platform designed to meet the demands of climbers across the performance spectrum.
It features a comprehensive progression of edge depths paired with Tension's signature edge radius profile that maximizes comfort while training.
Ideal for structured finger strength protocols, the Grindstone has become a foundational tool for serious climbers worldwide.
Grindstone dimensions: 22"(W) x 6"(H) x 2 3/4"(D)
Key Features:

• Full Width "Bar-style" Top Jug
• 50mm center one-arm edge
• 30mm edges
• 25mm edges
• 20mm edges
• 15mm edges
• 10mm edges
• 8mm edges
• Top phone slot for timer