Quick lock and release knob, fits 2.5"-3.75" cupholders, 360° rotation for best viewing angle, screw installs and releases in seconds, universal use for smartphones, ipods & other portable devices. 

Measurements: 4.33 Width/Inches, 4.33 Length/Inches
Base Material: 60% Plastic, 40% Acrylonitrile Butadiene Styrene
Care: Keep In A Dry Location
Country of Origin: Imported

Coordinating accessories sold separately.