The ladder does not have sufficient mechanical strength and can bend or break during use, causing the user to fall from a height. In addition, the space between the rungs/steps is not equal when the ladder is not completely extended and the user could therefore miss his step, lose balance and fall from a height. Also, whilst unlocking the locking mechanism of certain rungs/steps, parts of the ladder above may descend very quickly and crush the user's fingers. The product does not comply with the relevant European standard EN 131.