Upgrading your ceiling lights or installing a new fan? These XIUTE round ceiling electrical boxes are just what you need! This pack includes 6 boxes, each made from durable, fire-retardant PVC that's lightweight yet strong. The boxes have a 4.37-inch diameter and offer 20 cubic inches of internal capacity—plenty of room for wiring (holds up to ten 14-gauge wires, nine 12-gauge, or eight 10-gauge). Designed as \new work\ boxes, they feature built-in nails for quick installation onto wooden joists or studs, plus a live hinge for easy cable access and a grounding plate for safety. They're ETL listed to UL514C and UL263 standards, so you can trust their quality and safety. Perfect for mounting ceiling lights, fans, or ventilation systems in homes, offices, or commercial spaces. The round shape blends nicely with round ceiling fixtures, giving a clean, professional look. An essential DIY helper for any electrical project!