This is a box of 30 brand new, unopened 30mL Kjeldahl flasks made by Shibata Science HARIO. The lot number on the box is "10657". ❁Reason for sale I purchased this for ¥60,690 in 2022 when I started an aroma oil business, but I haven't used it and it has been stored unopened for two years. Therefore, I am offering it at a reduced price. I hope someone who needs it will purchase it (❁ᴗ͈ˬᴗ͈)) ❁Brand new and completely unopened ❁Ships within 24 hours of payment ❁Free shipping nationwide ❁I'm sorry, but I cannot offer a discount ❁You can purchase without any questions asked ✿Product Overview HARIO Kjeldahl Flask 30mL 010540-3061A Lot number: 10657 ✿Product Specifications Capacity: 30mL Height (mm): 180 Outer diameter φ (mm): 40 Neck outer diameter φ (mm): 15 Material: Borosilicate glass #Domestic_genuine_product #With_lot_number #Flask #Experiment #Research #Borosilicate #Beaker #Shibata_Science