Price is 16 is for single totaly it cost 1,600 for 100 RJ11 6P4C modular plugs, which are standard connectors used primarily for telephone systems.
These connectors are characterized by their transparent plastic housing and gold-plated contacts.
Type: RJ11 (also referred to as 6P4C, meaning 6 positions and 4 contacts).
Primary Use: Connecting landline telephones, fax machines, and ADSL modem cables.
Compatibility: Designed for both flat solid and stranded cables.
Termination: Requires a specialized crimping tool to attach to telephone cords.