Professional 31 PCS Repairing Tool Case Kit Set With Screwdriver Bit Set for PC Laptop Mobile Cell Phone and More Other Devices Package includes 30 Screwdriver Heads, embedded magnetic antiskid screwdriver, plus plastic box, commonly known as 31 PC in 1 dismantling machine tools. Mobile phones, hard disk and dismantling repair kit set, high integration, easy to carry Multi-functional and High Quality pocket screwdriver set is easy to use and carry Material: High Quality Stainless Steel and ABS Materials Contains the most common sizes 100% Brand new and high quality