Specifications: Color: black screw + white anchor pipe, yellow + black screwdriver Material: carbon steel screws + plastic anchor pipe, carbon steel + plastic + rubber screwdriver Screw size: (L x thread diameter)about 25 x 3mm/0.98 x 0.12inch, 30 x 3mm/1.18 x 0.12inch, 16 x 3mm/0.63 x 0.12inch, 20 x 3mm/0.79 x 0.12inch, 6 x 3mm/ 0.24 x 0.12inch, 8 x 3mm/0.31 x 0.12inch, 10 x 3mm/0.39 x 0.12inch, 12 x 3mm/0.47 x 0.12inch Screwdriver size: (total length x screwdriver rod length x screwdriver rod width)about 210 x 100 x 6mmm/8.27 x 3.94 x 0.24inch Package Includes: 400pcs x Self-tapping screw 20pcs x Plastic anchor 1pc x Screwdriver Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.