1. Replacement Blades: Plastic lawn mower blades are the perfect replacement for garden peelers, trimmers and lawn mowers. 2. Product Parameter: Length: 83mm, large circle diameter: 12mm, small circle diameter: 7mm. 3. Easy to Install: You can install the blades without any other tools,and it is safe and convenient. 4. Wide Compatibility: Suitable for bosch art23 li accutrim easytrim accu gtech st 04 & st 05 strimmer / trimmer qualcast mown trim easi-lite 28, 30 homebase st05 sovereign st05. Material:plastic colour:Red Package Contents: 80 * Plastic Grass Trimmers Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.