This is the JConcepts 5.5mm/7mm Combo Thumb Wrench.

FEATURES: Lightweight machined aluminum construction, blue in color Dual end design for use on the two most popular size hex nuts used on RC vehicles Center section is knurled for sure grip Laser etched on both ends to indicate size

INCLUDES: JConcepts 5.5mm/7mm Combo Thumb Wrench  

BOX DIMENSIONS: 4.75" W. X .88" H. X 8.50" L. BOX WEIGHT: .03 LBS.