The soft and secure portable bed rail comes completely assembled for maximum convenience it39s unique design retracts from 107cm to 63cm and folds up for storage and travel helping prevent toddlers accidentally falling out of the bed the rail folds down making it easier for children to get into bed suitable for beds that are a minimum length of 156cm with a mattress depth between 10cm and 26cm the folding bed rail will work on both solid and slatted bed bases folded dimensions 43 x 71