As of 12/29, Amazon's list price is 2999 yen. - Compatible size: 13 inches - Mounting method: Fixed to the car's cup holder - Adjustment function: 360-degree rotation - Color: Black - Material: Plastic I installed it in my car once, but it was different from what I imagined, so I removed it. There are no issues with its operation. Please understand that it is not unopened, and only purchase if you are okay with that.