Serfas MR-4 Glass Lens Bar Mirror brand_chamois buttr X-seam Range: 36" to 49"

X-seam Range: 36" to 49"

Folded Length:  n/a

And if you plan on using the TRIGO for more than simply sports and fun

Works on derailleur chain including 10

Serfas MR-4 Glass Lens Bar Mirror brand_chamois buttr X-seam Range: 36" to 49"Ride smart and more safely with Serfas side mirrors. Increase awareness and visibility of your surroundings as you ride. FEATURES Blast Resistant Glass Reflective Lens 360 Degree Adjustable Viewing Angle Mounts 21 26mm Diameter Bars (5mm Hex Wrench Required For Install) Eco Friendly High Impact Nylon Fiber Body PRODUCT SPECIFICATIONS Mounts 21mm 26mm Diameter Handlebars Lens: Blast Resistant Glass Color: Black Weight: 119 Grams (Per Side) 238 Grams