Garkit 24 Cell Grower Starter Kit with Square Cover, Black Three-piece Gardening Tools Thses grower starter kits are made of plastic materials which are durable, so they could be used for a long time without worrying about the quality. It could be a perfect choice for people who love gardening and planting flowers at home. They are made from recycled materials,so they are healthy. Individually shrink-wrapped for clean merchandising and secure packaging. They are useful in our family life and professional agricultural planting.This garden tool will be promised a one year warranty.