Description: JAKEMY JM-8170: 22 in 1 pocket screwdriver set appearance patented product, aluminium alloy shell: ultra-thin and lightweight, just like a mobile power supply, press left and right to bounce, easy to carry. One-handed non-slip mini aluminum alloy screwdriver handle unique 12 mm long variable bit, longer working depth achieves different maintenance of deep holes Feature: 1. 21 in 1(20 Bits, 1 Handle) 2. Magnetic Screwdriver Set 3. Application: Smartphone/Tablet/Display/Camera/Laptop/Computer .