Specification: Color: black, silver, blue Material: NBR, aluminum alloy Product Size: as shown in the detail picture Package details: 4 x black bumper quick release tabs 4 x washers 4 x nuts 4 x stainless steel bolts 2 x bumper fastener O rings Note: Due to manual measurement, the size and weight may have a certain error. Due to the difference between monitors, there may be a slight color difference.