Description:   Use the included pre-cut wedge to create your own derby racer with the PineCar derby kit. Design a stylish and polished vehicle using this derby car kit and shine in the next derby racing event. Add spoilers, pre-fabricated canopies, and other 3-dimensional parts and body details to complete the look of your 'Black Widow' themed car. Add the included dry-transfer decals and incremental weights to enhance the look and performance of your car. This derby car design measures 1.75 inch x 7 inch and adheres to most derby racing event rules.