Pretty tiny size with tire presure quage for a portable air supply. 
You can easily carry on your bag if you need a long tour ride.
An tire insurance you needed daily. 
 
 
Brand: GIYO
Color: Black
Size: 210 x 40mm
Spec: Dual Valve
Air pressure: 100PSI 
Weight: 160g
 
 
 
Made in Taiwan.