Premium Material: The Plastic Blades is made of premium plastic, which is safe and environmentally friendly, durable and not rusty, strong and durable, ensuring the efficient use of the lawn mower and efficient cleaning of the lawn Easy to Use: The Plastic Cutter Blades are easy to install and replace, simple to use, reasonable edge design, not easy to scratch your hands, and easy to clean, reusable. It can be used for trimming young grass or small shrubs, but not suitable for trimming large trees and shrubs. Size: The length of the Replacement Plastic Cutter Blades is 83mm, the diameter of the large hole is 12mm and diameter of small hole is 7mm. It fits most lawn mowers, it is a perfect substitute for lawnmowers, grass trimmers and garden blades. Wide range of uses: The Replacement Plastic Blades has a good stability and high reliability, and can be used in homes, gardens, agriculture, animal husbandry, aquaculture, gardens, courtyards, etc. specification: About 83mm in length Large hole diameter: 12 mm Small hole diameter: 7 mm Material: premium quality plastic Color: red Products include: 100x Replacement Plastic Blades