ORIGINAL ORGANICS BRITISH WOODEN COMPOSTERS BRITISH TIMBER 22mm thick. So many of our competitors only use 15mm thick timber or less. *Material sourced from UK forestry.*Low carbon footprint in relation to Imported alternatives.*Timber Species – Redwood.*All timber products are Fully FSC certified and EUTR compliant. (EUTR = EU Timber Regulation).*Manufactured in the UK.*Treated with UK and EU approved water based wood preserving treatment to give a 15-year guarantee. BRITISH MADE and BRITISH JOBS. Self-Assembly, No screws used. The Green way to compost. Please note - all wood used has been high pressure and vacuum treated which allows for a 15 year warranty on our composters. Colour of wood may vary from images shown as a result of the treatment process. Also note, you may receive your order and the timber may be wet, this can be because it has stood out in the rain during transit or it can be the timber has not dried out from the preservative treatment process. If the composter is received with the timber wet you may also notice some mould on the timber this will disappear when the timber dries and will not affect the operation or the warranty we give. This will not affect the use of the composter or raised bed, however there may be some warping and twisting of the timber as the timber dries. When timber dries out there may also be some shrinkage, however this can be mainly mitigated by ensuring all the screws are used in the installation and they are firmly secured into the timber. High-quality, fitted, FSC Wooden Lid for our wooden modular compost bins.Treated with non-toxic preservative so as not to harm the helpful worms, bugs and insects present in the bin.Fits 600, 1200 and 1900 Blackdown Range Wooden Composters.Product image shows the Lids on a 1900 Blackdown Range Double Triple Mix Wooden Composter which is not included.