A fully functional 20" (508 mm) diameter planter with drainage holes, the OmniPlanter 6-1/2" is an omnidirectional 2-way speaker as well. It includes a 6.5" coax woofer and 3/4" dome tweeter. An optional 64 watt transformer is available for installation of the OmniPlanter 6-1/2" in 70 volt systems. Rockustics OmniPlanters from SoundTube are constructed of UV stable, rotation-molded polyethylene and are available in two colors.