Aluminum alloy fluted old school BMX LAYBACK seat post * Color: RED ANODIZED * Material: Aluminum alloy * Size: 22.2mm (7/8") * Length: 490mm (19 1/4") * Brand new, never mounted - purchased in bulk so no retail packaging. * Let's be realistic - while the manufacturer doesn't specify a weight limit on these, they're ALUMINUM. Please take that, your own body weight, and your required seat height into consideration before ordering.