Phone Size Compatibility (S): The "size S" of this waterproof motorcycle phone mount case is special for the maximum phone size. 5.9" (L) * 2.9" (L) * 0.39" (T). It is compatible with most smartphones from 3.5" to 6.1". Please measure the size of your smartphone when you are not sure which size of the phone holder to choose. 1" FORK SHELF ALUMINUM BASE: The motorcycle fork stem holder with 1" ball base is specially designed to fit the cylindrical hole wall of fork stems. Equipped with two metal spacers, the 1 inch ball base for fork stem is suitable for 12mm-18.5mm-25.4mm/0.47"-0.73"-1" diameter stem tube holes. IP66 Waterproof Phone Mount Case: Made of sensitive and waterproof PET, with waterproof cap at the charging jack, this waterproof case for mounting the phone ball on the fork stem of the motorcycle is fully closed to allow people to answer calls/listen to music/charge mobile phones even on rainy days! DO NOT BLOCK YOUR PHONE CAMERA: Left with clear window on the top of the back, this motorcycle stem phone holder takes photos freely! Anti-theft design: The anti-theft knob on the double socket arm can only be unlocked with the unique key provided in the package. Never worry about it being stolen while you leave it out! Specialized Fits to Motorcycles: the motorcycle stem phone mount case fits for Yamaha YZF R1M/S R6 R6S, for Kawasaki Ninja 400 250 650 1000SX ZX600 Ninja ZX-6RR ZX-14R ZZR, for CBR 250R 300R 400R 650R 600RR 600 F4I, for BMW S1000RR Suzuki GSX 1300R GSX-R 600 750 1000 Hayabusa, for Ducati V2...
