Sizes vary by type: small ornament sets often contain balls about 1.2"–2.4"; tabletop or small decorative orbs typically measure 4"–8"; disco or mirror balls commonly range from roughly 7" up to about 60" for large inflatables.
Kits typically include an electric air pump (around 800 W) rated for 110–120 V operation, usually with a ~6 ft power cord and multiple nozzle adapters to fit different valve sizes.
Smaller disco-style spheres are often foam cores covered in mirror tiles for a reflective effect. Large mirror balls are also offered as double-layered PVC inflatables with airtight seals.
Kits commonly include built-in hanging hooks or rings on the balls; package contents often also list the air pump plus accessories such as nozzle adapters and valve wrenches for inflation and attachment.
Many disco and inflatable mirror balls include built-in hooks or hanging rings for suspending from ceilings or trees, while smaller decorative orbs are sized for tabletop or shelf display.
Available finishes include reflective/iridescent mirror surfaces, shiny gold, matte gold, bronze, mirror-tiled disco surfaces, and ornament styles described as matte, shiny, glitter, and openwork.
Some ornament sets include integrated LED string lights (USB-powered) with about 150 LEDs and multiple lighting effects. One set lists eight lighting modes: combination, in wave, sequential, slow glow, chasing/running water, slow fade, twinkle/flash, and steady on.