Fitment??For ATV, Car, Trailer, VanDescription:-Overall Dimensions: 56.3″ L x 25.98″ W x 16.14″ H-Load Volume: 14 Cubic Feet-Weight Capacity:130 LBS, but 150lbs when Evenly Distributed-Includes U-bolt mounting hardware kit-Both side opening for easy loading and unloading-Easy to install and remove with U-bolt mounting hardware-Includes locks to secure items in the box-Compatible with square bars, round bars, and most factory racks-Cargo box is made of 100% new material.-ing upgraded robotic arms for tight closure , to avoid making noise at high speeds and prevent mosquitoes and insects getting in.-This large Car Roof Cargo Box provides 14 cubic feet of storage volume, suits virtually any roof rack.-It’s good for mounting up to 3 inches wide cross bar. Max.distance between bottom holes of brackets for installation is 42.12????. Min. distance between bottom holes for installation is 17.32″.-High quality rugged, impact-resistant ABS material to ensure a long lasting life in outdoor conditions. -It can be open from both sides and stays open till you close it with the strong support from the mechanic arm.-There are 2 locks at both sides for better security, the key can only be pulled out when well locked.-Easy to attach and remove from the vehicle as you need. All U-bolt mounting hardware kit is well included and come with the product installation, You can have it ready with a fast easy installation, No extra tools needed.Package Included:1*56 inches length cargo box2*security lock keys