For our patented buckles, all have undergone real road tests. During road test, buckle is bearable for 5kg loading with 12.5km/h speed riding for 6hrs and no damage after emergency brake with 20km/h speed riding with 15-20kg loading. Focus on craftsmanship, design and durability, Active Intelligence pursues perfection to every detail. Each product has undergone the most strict quality tests. Beyond the standard is our core to make each product an unparalleled work.