This RAM® X-Grip® tether is new and improved to fit both the standard size (UN7) and large size (UN10) X-Grip phone holder for a stronger hold in harsh and open cockpit environments. Made of high-strength elastomeric material, this tether fits around the corners of your phone for added peace of mind on and off the road. - Attaches to the standard and large size RAM® X-Grip® phone holder and the edges of your phone for extra peace of mind in demanding environments - Compatible with all standard (UN7), large size (UN10), and wireless charging (UN12) RAM® X-Grip® phone holders - Made of high-strength elastomeric rubber to ensure a strong hold Material(s): rubber