Description: Material: plastic Color: red Weight (total): 1.3g/pc Total size (approx.): 6.9mm Hole size: 5.7mm Plastic replacement blades for Gardena lawn trimmers and cordless trimmers, plastic blades, easy to replace, suitable for trimmers Art 9823, 9825, 9820, 9821, 9828, 9829, 8840, 8841, 2417. Replacement blades RotorCut 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). Replacement blades for lawn trimmers, Trimmer | Cutting Blades for perfect lawn cutting and clean cutting patterns. For best results, replace all blades at the same time. Packing list: 500/100pcs Plastic Replacement Blades Note: (Compatibility is for reference only. Please compare the following with the original hole size before purchasing!)