Features: 1Function: As an auxiliary device for locking or unlocking the sliding mechanism of a semi trailer, the series slider can enable the truck driver to safely adjust the position of the trailer axle, better distribute the load and improve the stability. 2Safe Use: Made of strong galvanized cold rolled steel, with strong load bearing capacity and anticorrosion, able to withstand long time use and harsh working conditions. It is designed for safer operation and reduces the risk of accidental injury. 3Easy to Use: Insert the tandem pin into the hole you need, release the locking mechanism of the parking brake and the trailer slider, make sure the tool is firmly engaged with the locking pin after sliding, after locking the slider, remove the tandem pin. 4Tandem Slide Stopper: This moderate size ensures its compatibility and applicability, suitable for many kinds of semi trailer trucks. Provides robust support for sliding control. 5Improve Work Efficiency: Using our tandem pin can greatly improve work efficiency. It makes inserting and removing the slide stop lock pin much easier and faster without the need for other bulky or ill fitting tools, saving you valuable time. Specification: Item Type: Tandem Slide StopperProduct Material: Galvanized Cold Rolled SteelWeight: Approx. 462.00g / 16.3oz Package List: 1 xTandem Slide Stopper