This listing is for one handlebar mount assembly with an SAE connection to a 12 volt plug socket / outlet. The socket works with all 12 volt style automotive type accessory plugs also know as lighter plugs. The SAE connector has the same output polarity as a Battery Tender. Rated for up to 15 amps. #gmnt+sae1
Comes with polarity reversing adapter if needed.
The handlebar mount fits handlebars from 7/8" to 1.0" to 1-1/4". A series of rubber nesting grommets allow you to match the handlebar diameter.