Bits/Tools: Carbon Steel; Carbiner: Aluminum; Case: 600D Polyester ; 20-piece tool kit with components packed in case with hook and loop style closure and carabiner at corner; Components include: 10 assorted screwdriver bits in labeled rubber organizer; Bits: PH1 Phillips screwdriver head, PH2 Phillips screwdriver head, PZ1 Pozi Meter screw head, PZ2 Pozi Meter screw head, SL5 flat slotted bit, SL6 flat slotted bit, T10 Torx bit, T15 Torx bit, T20 Torx bit, and socket adapter; 1 interchangeable handle made of Carbon Steel and polypropylene plastic; 3 Carbon Steel hex wrenches (sizes #3, #4, #5); 4 Carbon Steel sockets (sizes: 5mm, 6mm, 7mm, 8mm) stored in elastic organizer panel; Product Size: 6.1 w x 4 h x 0.9 d