Ulanzi ST-01 Metal Smartphone Holder Tripod Mount Features: Super metal construction:CNC machined from solid aluminum, finished with sand blasting surface treatment and hard anodizing. With 1/4 #34; screw hole on the bottom, can be mounted on selfie pole, tripod, stabilizer, slider amp; alike for professional smartphone video shooting. Height adjustable to suit most smartphones whose width 2.6 #34; ~ 3.6 #34;. With protective rubble on the clip inner size to save guard your valuable smartphone. Easy to operate, fasten or loosen the screw for quick installation/removal. Aluminum alloy frame, steel screw, strong, sturdy amp; durable for long time use. Great for outdoor photography with smartphone. Specifications: Frame Material: Aluminum Alloy Screw Material: Steel Compatible Smartphone Width: 6.5cm ~ 9.3cm / 2.6 #34; ~ 3.6 #34; Item Size: 8.1 * 3.8 * 2.6cm / 3.2 * 1.5 * 1.0in Item Weight: 83g / 2.9oz Package Size: 9.2 * 4.5 * 3cm / 3.6 * 1.8 * 1.2in Package Weight: 91.5g / 3.2oz