This passage is about some main options in ladders choosing.

.A brief introduction in ladder checking and replacing for safety concern.

The ladder is a useful object in our daily life, such as folding ladders and adjustable ladders. In addition to it correct use, it is of great importance to take proper care of step ladders. As failing to maintain ladders will increase the risk of injury for users. Hence, to avoid accidents, it is crucial to pay attention to ladder safety by performing regular care and maintenance.