1. Screwdriver material: S2 tool steel 2. Shell material: ABS environmental protection material 3. Handle material: aluminum alloy metal handle 4. Upgraded version of the handle, the tail can be rotated, can be freely retractable 5. Equipped with 56 blades of different specifications and models, it can handle most electronic products such as mobile phones, computer tablets and various home appliances on the market 6. Screwdriver hardness: HRC58 degrees Celsius-62 degrees Celsius 7. Weight: about 395g Screwdriver bit size: -Straight: 1.0, 1.5, 2.0, 2.5, 3, 3.5, 4.0 -Nut driver: M2.5, M3.0, M3.5, M4.0, M4.5, M5.0, M5.5 -Hexagons: 0.7, 0.9, 1.3, 1.5, 2.0, 2.5, 3.0, 4.0, 4.5, 5.0, 6.0 -Phillips: 1.0, 1.5, 2.0, 2.5, 3.5 -Torx: T2, T3, T4, T5 -Torx securityy: T6, T7, T8, T9, T10, T15, T20 -Y shape: 0.6, 2.0, 2.5 -Five stars: 0.8, 1.2, 1.5 -Square: S0, S1, S2 -U shape: 2.6,3.0 -Triangle: 2.0, 3.0 -Other: PH2, 0.8