Ring terminals are used to create electrical connections. By using ring terminals, you won't have to worry about the connector pulling off. The ring fits securely over a screw or stud and won't pull loose as other terminals can. Blue ring terminals are for 16-14 AWG wire. They offer long-term protection and ease of installation. 16-14 AWG ring terminals come in a variety of insulation types.Non-insulated terminals are simply the most economical. They are used in applications where special performance is not needed. Nylon ring terminals offer rugged construction making them highly durable. They are known for high-performance quality and protection against stress. Vinyl ring terminals are used where an insulated barrel is a necessity. Vinyl ring terminals feature an insulation sleeve of color-coded PVC. This sleeve is permanently tapered to the barrel. Heat shrink terminals protect against the elements in the harshest of environments. They create moisture proof barriers protecting the electrical connection. These heat shrink terminals are built with a heat activated liner. This adhesive liner provides a rugged, environmentally sealed connection for wires from 16 AWG - 14 AWG.This heat shrink ring terminal (EDMO# TE1414R100) accepts 16-14 AWG wire, 1/4" studs, and comes a package of 100pc.