DURABLE AND STRONG MATERIALMade of super light 6061 aluminum alloy materialhigh density and strong QUICK RELEASE DESIGNQuick release designquick and easily to fold or fixedtoolless folding system SPACE SAVINGSpacesaving transportwhen you park the bike or need transport the bikeyou can folding the handlebarcan save more space and no damage SUITABLE CLAMP DIAMETERApplicable to bike stem with a center diameter of 254mmby add two aluminum alloy shimsit can applicable to diameter 318mmwe will send two shims for free WIDE USEWide range of usessuitable for bicyclesmountain bikesfolding bikesroad bikesskateboardsscooter and etc