Primacoustic IMPACT Impact-Resistant Panel, 24" x 48" x 2", Square Edge - Grey, 6 PackPrimacoustic Hercules panels are absorption panels that are designed to withstand the abuse of environments such as gymnasiums, offices, classrooms, and other public occupancy spaces. While most acoustic panels are delicate and susceptible to damage, Hercules will help to reduce reverberation while looking like new after repeated impact. Hercules Impact resistant panels are manufactured from the same high density (6pcf 96kg m3) glass wool core as