40" Mirror Disco Ball with 3/4" Glass Tiles | Bright Silver Reflective DJ Sphere with Hanging Ring

Introducing the ProX MB-40 40" Mirror Disco Ball , a production-grade reflective sphere built for the biggest rooms in the business. Touring concert productions, major festival main stages, headline nightclub installations, and large-format architectural lighting designs all share one thing in common: they need a mirror ball that performs at the same level as everything else in the rig. At 40 inches across, the ProX MB-40 is that ball. It fills arenas and large venues with a sweeping, high-density reflection field that defines the environment and commands attention from every point in the room. This is not a decorative piece. It is a featured production element. Core Construction The MB-40 is built around a high-density Polystyrene foam (EPS) core engineered specifically for professional large-format mirror ball construction. EPS is the industry-standard material for this application, combining exceptional structural strength with a weight-to-size ratio that keeps large balls manageable for rigging. The closed-cell foam structure resists humidity, holds its shape under sustained stage lighting heat, and maintains a true spherical profile through years of touring, storage, and repeated installation cycles. At 40 inches, a perfectly round core is a structural requirement for balanced motor rotation, not just a quality point. Glass Mirror Tiles The full exterior of the MB-40 is covered with precision-cut, high-grade glass mirror tiles measuring 3/4" (20mm) , scaled to the large format of this ball to produce bold, high-presence individual reflections that read clearly across the full depth of large venues. Each tile is manufactured to consistent thickness with clean square edges for tight, uniform placement across the sphere. Every tile carries a premium silvered backing delivering maximum reflectivity, true color rendering, and crisp beam definition under a focused light source. The mirror coating is sealed against tarnishing and discoloration to maintain its bright silver finish through years of demanding professional production use. Tile Adhesion and Density Each tile is individually bonded using a professional-grade high-strength adhesive that locks every piece firmly in place through continuous motor rotation, transport vibration, and the full demands of professional touring environments. ProX mirror balls use a denser tile pattern than traditional mirror balls of the same diameter, producing a brighter, more saturated field of reflected light and color that fills the room more completely with every revolution. Mounting Hardware A reinforced steel center rod runs the full vertical axis of the ball from top to bottom, anchored at each end by a heavy-duty removable O-ring and secured by an M10 nut for maximum mounting integrity. At this size and mass, the internal steel structure and dual O-ring mounting points are critical load-bearing elements, providing the strong mechanical foundation needed for safe overhead rigging and reliable motor connection during long production runs. Motor Compatibility The MB-40 is designed to pair with the ProX X-MBM-3 (1 RPM) mirror ball motor , rated for balls from 30" through 48" and available separately through ProX Direct. Compliance and Weight The MB-40 is CE and RoHS compliant. Net weight is 16.6 kg (36.6 lbs). Due to its size and weight, the MB-40 ships via LTL freight. Designed by Professionals. Built for Performers. Backed by 40 Years of Excellence. ProX products are designed by a team of seasoned industry professionals who know firsthand what it means when power fails mid-show. Since 1984, ProX has built its reputation on one principle: every product must perform as hard as the professionals who depend on it. We listen to our customers, and their real-world feedback directly shapes the products we bring to market. The ProX MB-40 is a direct result of that collaboration. When you choose ProX, you are investing in four decades of hands-on expertise and a brand that has never…