The upper part of the product is a lint-free fabric with a velvety texture. thickness: 7-8mm. upper surface: 150gr/m2 velvety shiny fabric. middle section: 4mm 26 density sponge filled. the bottom surface does not smell. at the same time, the bottom surface is hygienic and non-slip sole features. our dod sole productions oeko-tex® | standard 100 standards, msds report, top quality paints are used. instructions for use: it can be washed at 30° with a washing machine without wringing. it does not contain substances harmful to nature and human health. it does not contain carcinogenic substances. it does not make dust, does not leave lint. it can be used in 4 seasons. it is antibacterial and antiallergic. it has thermal insulation feature. it is dust and stain resistant. easy to clean. in case of dirt, you can immediately clean it with a damp cloth with liquid soap or aspirin. not ironed. Create a party-ready atmosphere with this colorful LED lighting. Easy to install and perfect for events or home decoration.