Heaven forbid you use this on a geared bike.
The Park Tool Single Speed Spanner SS-15 is the bike tool you need to complement your minimalist lifestyle. Pedal wrench? Check. 15mm axle nut wrench? Got it. Tire lever? Yup. Bottle opener? You know it. It's got just about everything you need to fix your fixie, and keep you lubed up in the process.
The Park Tool SS-15 Single Speed Spanner is available in one color and one size.