Irwin Allen Wrench Hex Key - MM: 2,0 - 2,5 - 3,0 - 4,0 - 5,0 - 6,0 - 8,0 mm

Manufacturer Website:
https://www.irwin.co.uk/tools/pliers-and-wrenches/hex-and-torx-key-fold-up-sets

Irwin Instructional Video:
https://www.youtube.com/watch?v=2omiMwpdEYo