This IceToolz Allen key has an ergonomic handle and can be used on both sides.
One side of the 3mm Allen key is a ball head or a spherical head.
The other (shorter) side is a straight hexagon.
These Allen keys are comfortable to hold thanks to the ergonomic handle.
The ball head/spherical head ensures that even the hard-to-reach Allen bolts are accessible.

– Ergonomic handle

Specifications:
Brand: IceToolz
Model: Twinhead
Type: Allen key
Weight: 0.029 kg
Material: Steel-plastic
Colour: Silver