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3 bearings system.
Aluminum alloy material.
Wide platform， smooth rolling.?
14mm chrome molybdenum steel axis.
Non-slip pins but avoid damage to shoes.

Specifications:
Material: Aluminum alloy?
Color: Blue / Black / Golden / Red / Silver / Titanium (Optional)
Application: Most bikes
Installation Tool: #6 hexagonal wrench?(not included)
Unit Size: 98 * 88 * 10mm / 3.9 * 3.5 * 0.4in
Unit Weight: 143g / 5oz
Package Size: 13.5 * 11.7 * 5.8cm / 5.3 * 4.6 * 2.3in
Package Weight: 342g / 12oz

Package List:
2 * Pedal