... 2. Eco-friendly products 3. Good for interior / exterior door 4.high quality and good pric Packaging & DeliveryPackaging Detail: ... :40mm,45mm,50mm 9.Application:entrance door/interior door 10.Surface:finished 11.Optional Wood: Oak,Sapeli,Hemlock,Pine,Eucalyptus,Alder, ... clean.16. Good effect on sound insulation and heat insulation.17. Protects against insects, damp-proof, firm, resists split, ...