Product specifications: Project Type: Foam Speaker Housing Features: non-toxic, tasteless, non-polluting Uses: electronic products, household appliances, etc. Size: 12 inch( 305 mm) Feature: 1.No water absorption, moisture resistance, good water resistance 2.Antibacterial, non-toxic, tasteless, non-polluting 3.Elasticity and high tensile strength, toughness, good impact / cushioning properties 4.Insulation, heat insulation, cold resistance and exposure 5.Closed hole, good sound insulation Package Included: 2 sets* 12 inch speaker accessories