A companion to the Super Satchel™ Series Marker Storage Satchel, the addition of extra Marker Trays will double your marker and pen storage capabilities! One of these extra trays holds up to 64 individual markers or pens. You already have some Super Satchels™? No problem! These tray lock inside any Super Satchel™ Double Deep (6990AB) or Semi Satchel™(6925AB)