Side by side.

Specification	DU-085-125-Opening DU-085-W .125 Opening Quote
Width	0.950"
Height	0.680"
Flange	0.125"
Material	Rubber
Type	Dense
Durometer	70 Shore A
Colour	Black
Mount	Push On
Bulb position	Side
Core	1.120in Wire

Spec sheets live on each part's page.