THESE END TRUCKS FIT PERFECTLY FOR LIGHT TO MEDIUM DUTY APPLICATIONS IN ASSEMBLY MAINTENANCE MACHINING OR GENERAL INDUSTRIAL APPLICATIONS. END TRUCKS ARE EASY TO HANDLE AND ARE DESIGNED TO BE BOLTED TOGETHER FOR TROUBLE-FREE ASSEMBLY. KIT INCLUDES TWO END TRUCKS BUMPERS BRIDGE BEAM FASTENER SET TROLLEY END STOPS BEAM FABRICATIONS INSTRUCTIONS AND ASSEMBLY/INSTALLATION GUIDE.