A storage and display rack for various guitar types that also allows a user to easily add and remove said guitars. The thin film includes a compact layer having a thickness in a range of greater than 50 \u212b to about 20,000 \u212b and a refractive index in a range of about 1. 0 device is removed and replaced with an oscillator circuit module in the present invention, in which a simple circuit module is added to the controller circuit of the USB3. A controller determines added mass on the vehicle in response to the signal and adjusts a vehicle characteristic in response to the added mass. An offset link pivotally attaches the roof poles to the legs, adjacent to the top of each leg.