1. 1.1 x cutting disc and professional: suitable for battery trimmers from Einhell, Gardol, Gartenmeister, Mr Gardener. Note: not suitable for Gardena or Ferrex. 2. List of compatible lawn mower models: Our cutting disc replacement disc with screws is suitable for the Parkside lawn trimmer PRTA 20Li A1 LIDL IAN 311046 3. Easy to use, even beginners can use it: no additional tools are required and it can be quickly replaced and used in just a few simple steps. Even a beginner can easily learn to replace and use it without professional instructions, so you can mow your lawn easily. Gardens and courtyards. 4. Highquality material, robust and durable: Our cutting disc is made of highquality ABS material, is thickened, more robust, wearresistant and durable. It can be used for a long time after replacement and installation and it will not be easily broken or damaged. Perfect quality.