【High Airtightness Performance】 This building material has a high airtightness of 90K density, providing excellent insulation performance. 【Size and Quantity】 Each board is approximately 450mm x 100-120mm in size, and a total of 144 boards are included. It can handle large-scale construction. (Please note that there may be chips, stains, dents, and size differences due to being offcuts.) 【About Shipping】 This product is offered with free shipping, so you can purchase it without worrying about additional costs. (Simple packaging with vinyl.) - Density: High airtightness 90K - Thickness: 25mm - Size: Approximately 450mm x 100-120mm - Quantity: 144 sheets - Shipping: Free Thank you for viewing. 【Remarks】 Please note that the item may be out of stock due to sales on other sites. Please inquire about changes in quantity or size. This is a bargain sale for inventory adjustment. We also handle disposal items such as 3, 9, 18, and 36 pieces, and processed products. Click here for other products! If you want multiple items, please consult us through the question box. Easy to install to the desired size with a cutter, etc. Regarding bank transfers, if you select payment via ATM/convenience store, ■【Please】■ inform us of the scheduled transfer date within 24 hours. If we do not receive your notification, we will report, delete the buyer, and block the account. Insulation and sound absorption effect / Glass wool / Fiberglass Glass wool / Heat resistant / Fire resistant / Soundproof / Building materials / Renovation / Repair / Sound absorption / Cold weather measures / Heat stroke measures / Noise measures / Glass fiber / Construction / Temperature Glass cloth / Insulation material / Soundproofing material / Interior lining / Soundproof / Glass wool / Heat-resistant material / Repair material / Protection / Renovation / Sound absorption / Heat resistant / FRP cloth / Fiberglass / Fender / Exterior / Frame / Old folk house / Cowl / Tent / Sheet / Fabric / Thin / Car / Building materials / Surface / Glass fiber / Soundproof / DIY / Detached house / Apartment / Heatstroke / Experience / Interior / Roofing / Hut / Animals / Roof / Karaoke box / Non-combustible