Crank Brothers keeps on refining mini-tools. The F series is small, thin, light, and dense with tools. This is the F10.
The 10 refers to the number of tools you have here. It comes with Allen head (aka hex) wrenches: 2, 2.5, 3, 4, 5, 6, 8mm. It comes with a t-25 Torx head. It comes with a slotted #1 and Phillips #2 screwdrivers. The bits are made from forged steel.
The F10 weighs 94g. It measures 61x36x13mm. It comes with a five-year warranty.