Thickness: Approximately 10-13mm Needle felt. Set of 4. Size: Approximately 70cm x Approximately 6cm. *Slightly larger than indicated to ensure there are no shortages. Will be folded in thirds for shipping. Can be cut with fabric scissors. Utilizes soundproofing and sound absorption properties. Used for car deadening, cushioning, etc. Relatively tightly packed, I think it's suitable for deadening, etc. If you need other sizes or a large quantity, please let me know in the comments section. *Due to the nature of the material, fibers may shed easily. Please understand the condition before purchasing. Thank you for viewing.