We have a custom tool box made to mount on the back of your 500GH or the side of your 300GH honey wagon in front of the wheel. It is constructed of 1/8″ gauge diamond plate aluminum, weighing over 11 lbs. It is designed to be tough and resistant to rust. The dimensions are 20″L x 9″W x 8 3/4″H. Give us a call or send an email for more info.