Side by side.

Specification	SD-198-T SD-198-T Quote
Width	0.950"
Height	0.675"
Material	Rubber
Type	Sponge
Durometer	2A3 (sponge grade)
Colour	Black
Mount	Tape
Bulb position	Top
Tape	3M Heat-Activated Tape

Spec sheets live on each part's page.