Made in Japan Non-woven fabric Flame-retardant self-extinguishing Thickness approximately 10mm Please refrain from negotiating the number of sheets or price. * We also handle mounting frames, so please consult with us if you are a first-time buyer. Customers in Okinawa and remote islands will incur separate shipping charges, so please comment before purchasing. This is a pack of 36 filters for 297 x 342mm frames. - Size: For 297 x 342mm frames - Quantity: 36 sheets Thank you for viewing.