Bag Boy Mobile Device Holder Holds mobile device securely Adjustable grips open from 1.5 inches and hold up to a 2.75 inch wide device Includes a quick mount clamp for round or oval tubing up to a 1.75 inch diameter Compatiable with all smart phones and most MP3 Players Adjustable grips open from 1.5" and holds up to 2.75" wide device A fliexible grip can be adjusted to the perfect postion with suction cup base. Includes a quick mount clamp for round or oval tubing up to 1.75" diameter or suction for window in carts/cars