Single Binding Post, gold plated hardware, color coded red.

Single binding post with insulators, gold plated hardware.
Accepts 5 mm banana plug or wire up to 5.50 mm in front and 5 mm soldering tab on the back
Length when screwed down:  1 1/2"  (37 mm)
Weight: 15 g
Can be m,ounted on a surface with or without plastic insulator.