The Bellinturf TURF CORE is 15' Synthetic Turf Core. With great water permeability, Bellinturf residential grass can alleviate the problem of rainwater accumulation quickly. The color of Bellinturf residential grass is close to that of natural grass while we are increasing the color diversity of our turf. More importantly, raw materials of our residential grass are free from heavy metals and harmful substances with a fire resistance level, meeting the requirements both indoor and outdoor applications.