Sizes listed are all I have in my inventory right now until I place another wholesale order.
Taken from ChiaoGoo's Website:
Made of surgical stainless steel, our 6″ (15 cm) double points have precisely machined and perfectly tapered tips. They have a smooth, satin-sheen finish with the size permanently laser imprinted on each needle. While lightweight and durable these needles are also very strong and 100% recyclable!