Product Armrest Length 5 * Product Height (from Handlebar To Armrest) 3.5 -4.5 * Constructed Of Lightweight Aluminum * Height And Depth Adjustable * Handgrips Extend Forward Or Back Supinate Pronate And Are Angle Adjustable * Contoured Armrest With A Flexible Edge * Includes Hook And Loop Fastener Straps To Prevent Arms From Slipping * Choice Of Mounting Positions - Inside Or Outside Of The Handlebar For Lateral Adjustment Spacers Are Included For Additional Lateral Range * E1399-1 E1399