Features:_x000D__x000D_Constructed of premium aluminum alloy, sturdy, rigid and durable. _x000D_Be able to lift rear mirror by 3cm and extends it up to 4cm (the maximum extending distance of two rearview mirrors is 8cm). _x000D_Effectively prevent riders form blocking the view of the rearview mirror, help broaden the viewing range of the motorcycle (or electric bicycle). _x000D_If users need to extend wider distance, 10mm and 8mm two sizes can be used in combination (6cm rising height, outward extending distance up to 8cm). _x000D_Simple installation process, practical and convenient to use. _x000D_Suitable for most motorcycles and electric vehicles whose rearview mirrors are with M10 or M8 mounting apertures. _x000D__x000D_Specification:_x000D_Condition: Brand New_x000D_Material: Aluminum alloy_x000D_Main Color: Black _x000D_Thread Diameter: 10mm(M10), 8mm(M8)_x000D_Extended Horizontal Distance: 4cm_x000D_Risen Vertical Distance: 3cm_x000D_Package Weight: Approx.106g/3.7oz_x000D__x000D_Package List:_x000D_2 * Mirror Adapter_x000D_2 * M10/10mm Screw_x000D_2 * M10/10mm Gasket_x000D_2 * M8/8mm Screw_x000D_2 * M8/8mm Gasket_x000D__x000D__x000D__x000D_Note:_x000D__x000D_Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1Constructed of premium aluminum alloy, sturdy, rigid and durable. 2Be able to lift rear mirror by 3cm and extends it up to 4cm (the maximum extending distance of two rearview mirrors is 8cm). 3Effectively prevent riders form blocking the view of the rearview mirror, help broaden the viewing range of the motorcycle (or electric bicycle). 4If users need to extend wider distance, 10mm and 8mm two sizes can be used in combination (6cm rising height, outward extending distance up to 8cm). 5Simple installation process, practical and convenient to use.