ULTRA SECURITY: this phone mount x web grip strap security bands made of strong silicone, it will grip your phone and device firmly, never let your phone to fall out from the mount, safer and more reliable when riding at high speed. WIDE APPLICATION: this phone mount x web grip strap security bands is flexible to hold phones up to 5.5" including case. UNIVERSAL COMPATIBILITY: this phone mount x web grip strap security bands fits for most motorcycle phone mount, bike phone mount and most mountain & road sports bicycle handlebar cradle. EASY TO USE: this phone mount x web grip strap security bands is easy to install and remove by hand just in a few seconds. PACK OF 4: this phone mount x web grip strap security bands comes with total of four silicone rubber bands (2 black& 2 red), so you can choose colors and have backup bands if you need them.