Tough-Strap™ Handlebar Ball Base - Low profile handlebar mount featuring the RAM® Tough-Strap™, easily attaching to your handlebar with the turn of a single knob - Made of high-strength composite and stainless steel hardware for durability and reliability in the most demanding environments - Attach any RAM® B size socket arm and desired device holder for an ideal handlebar mount for all bike types, including mountain bikes, road bikes and e-bikes - Includes two different strap sizes for handlebars; Long strap ranges from 1-1/4"-1-3/8" diameter and small strap ranges from 7/8"-1" diameter, with an extra rubber strap for a more custom fit ranging from 1"-1-1/4" - Backed by a lifetime warranty