Side by side.

Specification	SD-212-T SD-212-T Quote
Width	0.700"
Height	0.600"
Material	Rubber
Type	Sponge
Durometer	2A3 (sponge grade)
Colour	Black
Mount	Tape
Bulb position	Top
Tape	3M Heat-Activated Tape
Industries	Marine

Spec sheets live on each part's page.