Pearl Travel Conga Drumhead: Approximately 30 cm Diameter: Approximately 35 cm Thickness: Within 10 cm Thank you for viewing. I purchased this because I became interested in percussion, but it has been stored unused. I am selling it due to a move. I hope it reaches someone who will use it. Thank you. I am not very knowledgeable about the product, so I may not be able to answer detailed questions. Thank you for your understanding.