Pyramid Shape Soundproof Foam Sound Proof Padding Treatment Panel for Bass Insulation 12x12x2 Inch Made of high quality environmentally polyurethane foam. these studio foam are durable and effective. no health risks. safe to use. Acoustic foam panels feature a classic design that offers excellent sound deadening and echoes absorption.This product provides strong noise reduction . where moderate deadening is desired. The high quality material studio foam can keep its sound insulation function permanently. In terms of cleaning. you just need to vacuum and dust them occasionally. Product name: soundproofing foam Colour: Black Material: Polyurethane Quantity: 6pcs Specification: high density flame retardant Size: 30x30x5cm Package Contents: 6 x soundproofing foam Only the above package content. other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.