MCP Syringe & Needle Destroyer has Two slots easy operation for destroying Needle & Syringe. It has cooper Circuit. Operation: 1. Switch on the device. 2. Insert the needle in the needle slot. 3. Push it gently downwards till arcing stops. 4. Put the syringe in the syringe slot. 5. Push the handle of the cutting blade to cut the syringe at the nozzle.