Use open end for quick adjustment of spoke nipples and semi-closed end for those hard to turn nipples that require more torqueSpecially designed ergonomic handle allows larger turning radius and excellent grip and feelUnique combination wrench design has 3-sided open end and semi-closed end6 piece spoke wrench set includes convenient storage pouchLaser engraved logo and size markingsSet includes:One 5 mm wrenchOne 6 mm wrenchOne 6.3 mm wrenchOne 6.5 mm wrenchOne 6.8 mm wrenchOne 7 mm wrench