Safe, comfortable, versatile... and it fits a wide range of Ferno trolleys. Safety is paramount when children are being transported... but the right harness system should offer you more than just this. Your chosen system needs to support children of a relatively broad age and weight range, avoiding wasting money and storage space on multiple harnesses of varying shapes and sizes. Restraints need to be secure but also comfortable, so the child doesn’t feel restricted. Durability and hygiene are also important.