Clean the ladder regularly to prevent certain chemicals from corroding the surface of the ladder. Regular inspection joints, add oil if necessary ; in case of material ladders become bent, broken or connection does not work, be sure to contact the manufacturer for professional maintenance ; environmental conditions poor will reduce ladder life of the child, Generally speaking, its service life is 2 years indoors and 1 year outdoors . The multi-style combination is convenient to build and dismantle without being restricted by the site. Equipped with brake casters, the entire tower can be moved or fixed at will on the ground. The polyurethane casters have no damage to the ground; beautiful appearance, corrosion resistance, maintenance-free, and high repeated use rate. The service life is at least more than 10 years; the all-aluminum scaffolding is flexible to build, and the all-round multi-directional design can be built in different shapes, making it easy to construct various complex scaffolds .