Spring-loaded holder features adjustable side supports that provide a secure fit for a variety of large phones and other devices; easily insert and remove your phone with one hand Included B size 1" RAM rubber balls allows for connection to any B size RAM double socket arm; ball and socket technology allows for near-infinite adjustability Made of powder-coated, marine-grade aluminum and high-strength composite for durability and reliability in the most demanding environments Holder Dimensions: Height Range: 5.75" - 7.25", Width Range: 2.625" - 3.625", Max Depth: .72" Backed by a lifetime warranty