Both items are made for the Royal AiroPro 1000 canister vacuum

you should throw them away and install a replacement

Digital Display: LED Display

while promoting adequate airflow

Clarke Nap Sac Commercial BackPack 61528A Vacuum Bags, 6 Pack Miele Irons & Presses Both items are made for[custom_html] This package contains six genuine Clarke Nap Sac Commercial BackPack 61528A paper vacuum bags, designed to fit Clarke Nap Sac backpack commercial vacuums. The number 61528A vacuum bag fits models 02132B, 02134B, 02136B, 02146, 02133B, 02135B, and 02137B. If the model number of your Clarke Nap Sac Commercial BackPack ends in the letter 'A', this is not the right product for your vacuum (see instead MPN: 63087A). Please note that these