Weiler 42357 24-inch Green Works Sweep, Coarse Maroon Fill With Rubberwood Block - Sustainable, recyclable, environmentally-friendly, Green - all of these come to mind with the new Green Works line from Weiler. Made from recycled or sustainable raw materials, the Green Works line is manufactured in a LEED (Leadership in Energy & Environmental Design) approved facility to ensure that even the production environment is environmentally-friendly. All of this, plus the same great performance! Every product is made to the quality levels you expect when you hear the name Weiler. Green Works Product Construction: Fill material is made out of recycled water bottles, giving a second life to these waste products and helping to clean up the environment. Rubberwood blocks are made from the wood of rubber trees that have ended their life cycle in the rubber production industry. We are putting the waste product of that industry to good use. Foam blocks are made from recycled plastics. Handles are made from bamboo - a very strong and durable natural resource that replenishes at a very rapid rate in the environment.