Specification • Brand / Model: Night Star Solid Copper Swivel Head – 4-Pack • Voltage: 100 V – 240 V universal • Styles (4-in-1 pack): Universal Swivel Head, Heavy-Duty Swivel Joint (Large), Large 180°-3-Way Elbow, Mini 180°-360° Swivel Joint • Thread: M10 female one end, M10 male the other (all four pieces) • Dimensions: – 30 mm OD, M10 ID, 13 mm shank, 33 mm length • Material: 100 % solid brass / copper • Finish: precision-turned, anti-corrosion sealed • Package: **4 identical swivel heads sold as one 4-pack unit** Features • Aim Light Exactly Where You Need – 180° to 360° rotation puts wall sconces, desk lamps and floor lamps in perfect focus • Solid Copper Core – zero rust, zero wobble, lifetime conductivity • Dual M10 Threads – male on one side, female on the other; mix & match with any standard lamp rod or canopy • **4-Pack Value** – re-angle an entire room or keep spares for future builds • Universal Voltage – works from Manhattan studios to beach-house patios without adapters Kindly Notice • Dimensions are measured shoulder-to-shoulder; allow ±1 mm machining tolerance. • Copper is softer than steel – tighten with 10 mm wrench only, hand-snug plus ¼-turn. • Thread sealant recommended for outdoor fixtures to prevent micro-vibration loosening.