A universal rubber grommet, perfect for attaching cabins to helicopter models. It is also used as a grommet for electric wires, where there is a risk of chafing the cable (e.g. metal, plastic, etc ...).
Dimensions:
outer diameter: 7 mm
Inner hole diameter: 2.2 mm
width: 3 mm
groove width (for partitions): 1 mm
outer diameter (for the opening in the partition): 5 mm