If the scroll was long, it would have rods at both ends, which the reader would use to unroll the text with one hand and roll it up with the other, until the desired place was found.
وفي حال كان الدرج طويلا ،‏ وُضع له من الطرفين قضيبان استعان بهما القارئ ليفتح النص بيد فيما يطويه بالاخرى حتى يصل الى المكان المطلوب .‏