Description The item is a set of 670pcs professional clock watch screws in 10 different sizes, which are made of high-grade stainless steel material for durable to use, and suitable for watchmaker to repair watches and clock. The stainless steel screws are kept in a transparent plastic box for keeping the different sizes separated and easy to access. Features - 670 pieces of the stainless steel clock watch screws in 10 different sizes in one set will be sold together. - Color: as shown in the pictures. - Material: durable stainless steel. - Each screw diameter: about 1.2mm. - 10 different sizes (Screw length): 1.6mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm. - and Stainless Steel Clock Watch Eyeglasses Screws Repair Tools Set. - These quality screws are an extremely handy accessory to your tool kit. - Can be used for repairing your watches and clock. - Keeping those 10 different-sized screws in a transparent plastic box case, for easy to access.Package list: 670 * Professional Stainless Steel Clock Watch Screws Repair Tools in 10 Different Sizes - 1.6mm to 6.0mm 1 * Plastic Storage Case Box