Set of screws for watches and eyewear. Screw diameter 1.2 mm. Screw length: 1.6 mm - 2.0 mm - 2.5 mm - 3.0 mm - 3.5 mm - 4.0 mm - 4.5 mm - 5.0 mm - 5.5 mm - 6 , 0 mm. 50 screws per length instead of the promised percent. Note: There are no screws 1.8 mm, but there are screw 6.00mm unlike the detailed product description. Delivered on time. Moderately satisfied because it lacks 500 thousand screws on promised. The box with the screws weighs just 50 grams and yellow label on the received box is not at all the same as that shown in the photo.