Each kit contains 25 of the Swab Boxes 18.5 cm x 4 cm x 3 cm when closed (7 1/4” x 1 1/2” x 1”), 25 x 3 ml of sterile water in plastic vials (won't break, easy to thaw in your hand), 25 packs of 2 swabs and a roll of 75 evidence labels to seal the boxes.