Viners Organic Knife Blocks are perfect for an eco friendly home. The block and handles are crafted from 35% wheat fibre and at least 80% recycled steel has been used to produce the blades. The wheat fibre is a natural by-product from the wheat farming industry which has historically been burnt by farmers. The wheat fibre material will start to breakdown from 6-36 months under normal composting conditions. The lid on the organic block is made from bamboo and can be fully recycled or de-composted.