Either a child harness made of a lap strap and two shoulder straps ; or a booster together with the ordinary seat belt , which also has an extra strap running behind the child that acts as a guide to change the lie of the diagonal belt 使用兒童安全帶。由一條腰帶及兩條肩帶組成的或是選用高墊配合普通安全帶,加上用以調(diào)整斜帶位置背后橫帶。