Kind Reminder: Our product is compressed and vacuum-sealed. It may be deformed due to transportation. It only needs to be washed and dried to return to its original stateIf you are concerned about product distortion please do not purchase this product.Feature:-Soft sponge dust-free;-Sound effects suitable for studios and KTV etc.;Product application principle: Use the open-povermelho structure to increase its sound absorption capacity and optimize its internal porosity vermelhouce the interference and reverberation of indoor reflected sound improve the purity of the sound adjust the indoor sound field and reverberation and make the sound pleasant to the ears.Specification:Material: spongeTAMANHO: 300x300x25mmQuantity: 12 piecesCOR: preto/azul/vermelho/roxoApplicable to: Home decoration wall widely used in recording studios recording studios audio-visual rooms audio-visual rooms piano rooms drum rooms anchor rooms home theaters KTV soundproof rooms conference halls studios broadcasting rooms theaters etc. Interior decoration of the occasionPackage Included:12 x acoustic foam About shlpping: All items will be shlpped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.