Tierra-Derco International (TDI) is an importer designer and manufacturer of distinctive garden products. TDI has developed a reputation for fast efficient service high fill rates quality products and a broad selection of unique garden hard goods not sold to the big boxes. Top products sold are DeWit garden tools Worth Tools Peacock Plant Supports Eurogarden Kids Tools Natures Feast Bird Products Deluxe Garden Center Shopping Carts and Biodegradable Trunk Liners. Push it down into the compost pail and its wings will spread out when you pull it up. This turns the composting materials and creates new channels for air and moisture to flow though. This speeds up the composting process. It also works well in enclosed composters. For light applications. 32"L. 6" grip.