Material: Plastic Color: Red Weight (total): 1.3g per piece Total size (approx.): 6.9mm Hole size: 5.7mm Plastic replacement blades for Gardena lawn trimmers and cordless trimmers. These plastic blades are easy to replace and compatible with models Art 9823, 9825, 9820, 9821, 9828, 9829, 8840, 8841, and 2417. Replacement RotorCut blades are also suitable for EasyCut Li-18/23 R (art. no. 9823), SmallCut Li-23R, ComfortCut Li-18/23 R (art. no. 9825), AccuCut 400 Li (art. no. 8840), AccuCut 450 Li (p/n 8841), and AccuCut (p/n 2417). These cutting blades are designed for lawn trimmers, providing clean and precise cutting results for well-maintained lawns. For optimal performance, replace all blades at the same time. Packing list: 500 or 100 pieces of plastic replacement blades Note: Compatibility information is for reference only. Please verify the hole size and dimensions against your original blades before purchase.