Using the Bessey ST250 telescopic drywall support is easy. First, for a rough pre - setting, adjust the telescoping and quickly lock the inner pipe to get close to the desired length. Then, turn the support at the foam grip to do the final clamping. It can be used on flat surfaces and slopes. When using on slopes, make sure the swivelable contact surfaces are adjusted to fit the angle, which can range from - 45° to + 45°. Regarding the load, keep in mind that it can handle up to 150 kg when the telescopic rod is fully retracted, but this depends on the size of the support and the length applied. For maintenance, regularly check the special steel pipes for any signs of damage or wear. Also, make sure the locking mechanism and the release button's additional locking are working properly. Keep the rubber PVC contact surfaces clean to maintain good grip. Since it's GS - certified, you can trust its quality and safety, but always follow these basic guidelines for the best results.