PREMIUM MATERIAL: Made of high quality stainless steel, sturdy and wear resistant, durable to use 12 KINDS MODELS: 12 kinds of small screws and nuts assortment kit, M1 M1.2 M1.4 M1.6 is available MODELS QUANTUTY: M1.2 M1.4 M1*3.6 M1.2*3.6 M1.4*2.4 M1.4*2.6 M1.4*2.8 M1.4*3.0 M1.4*4.0 M1.4*4.5 M1.4*1.6 M1.6*4.5, 50pcs for each model. Total 600 pcs and you can use them for quite a long time STORE IN PLASTIC BOX: Well packed and assorted in a plastic box, don't have to worry about damage or disorder. Good assortment of screws. The box design is nice and easy to take right screw out APPLICATION: Great for watches,clocks, glasses, electronics or anything else repair that requires small screws. A handy accessory to your tool kit Specifications: Material: Stainless steel Box Size: 8 x 1cm / 3.15 x 0.39inch Weight: 64g(approx.) Content: M1.2nut, 50pcs M1.4nut, 50pcs M1*3.6, 50pcs M1.2*3.6, 50pcs M1.4*2.4, 50pcs M1.4*2.6, 50pcs M1.4*2.8, 50pcs M1.4*3.0, 50pcs M1.4*4.0, 50pcs M1.4*4.5, 50pcs M1.4*1.6, 50pcs M1.6*4.5, 50pcs Package Includes:1 Box x Screws Nuts Assortment Kit(600pcs)