154 in 1 Precision Screwdriver SetUpgrade version small screwdriver set with case includes 140 magnetic bits, 1 screwdriver handle, 12 disassembly accessories and extra magnetic mat. The mini tool kit is perfect for repairing electronics, game controller, glasses, watch, jewelers and technician. 140 Magnetic Screwdriver TipsThe screwdriver bits are made of CRV steel with high hardness and good toughness. All of the bits undergo the rigorous quality control testing, not easily stripped. This precision screwdriver kit can be used in a variety of practical situations to meet your various needs. Slip-resistant Rotatable HandleThe screwdriver handle adopts anti-slip texture to increase friction, comfortable to hold even for the long-time use. Equipped with a hard extension shaft and a flexible extension shaft which is easy to be extended to a tight space where the handle cannot enter. Practical Small Tool KitThis repair tool kit has tweezers, crowbar