1Commonly used for motorcycle mirrors with 10mm mirror stem and 25mm pitch thread. 2Ideal for raising and extending mirrors, allowing you to adjust to a suitable angle. 3Perfect fit, easy to install, no need of modification, not include installation instruction. 4Constructed by plastic material for maximum durability, long service life. 5Fit for most motorcycle/motorbike/sportbike / cruisers/dual sport / scooter...with M10/right-hand rotation mirrors. 2 x Motorcycle Mirror Extenders2 x Bolts Item Type: Motorcycle Mirror Extenders Material: PlasticThread Diameter: M10 (clockwise)Bolt: M10 M8 Rotation: Clockwise/Right-handBolt Thread Length: Approx. 20mm/ 0.79in(2x)40mm/ 1.6in Horizontal Extension21mm/ 0.8in Vertical RaiseFitment: Only for the mirror hole diameter M10 and thread pitch 1.25mm and thread direction is Normal / Regular / Right Hand / Clockwise / Male.Universal - Fit For Most Motorcycle / Motorbike / Sportbike / Cruisers / Dual Sport / Scooter...with M10 / Right-hand rotation mirrors.(Only Suitable For Yamaha Right Hand Mirror As They Have A Left Hand Thread On Them)