It is a very convenient combination for the security and positioning for your Bobbybilt Wagon. This pocket size Wire Lock has 4 digit combination lock and: • 5mm self-coiling, flexible steel cable • Easy to use, 4-digit present combination lock • Protective vinyl cover • Limited Lifetime Warranty 4'(120 cm) x 3/16" (5 mm) Tire Stopper comes with anti-slip surface, 6 x 4 x 4 inches $16.00 visit our site at http://kaz-usa.com for more information.