THESE ARE QUALITY UNITS THAT SHOW YOUR GEMS OR JEWELLERY PIECES TO EFFECT.CLEAR OPEN TOPS ALLOW YOU TO VIEW THE PRODUCT WITHOUT HAVING TO OPEN THE BOX AND SPILL THE CONTENTS EVERYWHERE.SECURE AS WELL.COME IN CARTONS OF 40 UNITS.EACH INDIVIDUALLY BOXED. LARGE BOXES MEASURE...30mm-95mm-135mm