Accurate Fit Magnetic Tips: S2 alloy steel high precision magnetic head, sulfurized ash, hardened heat treatment, quenched steel forging. Hardness up to 62 HRC, wear-resistant rust, easy to hold tiny screws. Ergonomic Handle: Handle is made of ABS plastic, sprayed with rubber oil on the surface, comfortable hand feeling, anti-static streamline design and guarantee optimal force-transmission. Handle is wide enough to give you most comfort and maximum torque, with super smooth 360 degree rotation cap. P5 Pentalobe Screwdriver: Pentaloble screwdriver set 1.2mm used for opening the back panel screws of Macbooks, 5-pointed star screwdriver specially designed for Apple laptop disassembly and repair.