Material: Stainless steel, after each use, pls wipe them clean to remove rust pollution even after use Ergonomically easy to use sharp co.ukont co.ukont and do not hurt the horizontal surface of the water grass, avoid causing damage to the water grass Ideal for saltwater or co.ukeshwater aquariums, aquariums, indoor gardens, terrariums, hospital tanks or goldfish bowls It is also the best tool for aquatic plant growers experienced in the care of young aquarium plants. Please note that the 5 in 1.3 in 1 kit and the substrate spatula must be purchased separately.