Includes 3 sizes: Fine- Thickness: 0.64mm, Length: 35mm Medium- Thickness: 0.76mm, Length: 36mm Thick- Thickness: 0.89mm, Length: 42mm These beading needles from Tulip in Japan are the simply the best! The high quality design is bendable and flexible. They don't break easily. The tip is slightly rounded which prevents splitting thread. They are nickel coated steel with a gold plated eye. The eye is larger than you would think so it's easier to thread the needles. Even silk thread won't split while threading! They are much stronger and longer lasting than many other needles out there. Yes, they are more expensive, but you won't need to replace them as often and they will save you time and $ in the long run. Oh, and by the way.... They come is these cool little vials with a cork on top. The package is another bonus. We Love Love Love these needles!!! You will too!