Hi Noni, thanks for providing more context about your car issues. Based on the funny sound from your brakes, it seems you likely need new brake pads. From the PriceCheck search results, I'd recommend either the "Set Brake Pads Rear for R80" or the "Set Brake Pads for R80". For just R80, you get a full set of pads which should solve the sound issue. Installation is easy with basic hand tools too. Let me know if you need any other assistance in getting your brakes sorted. I'm here to help you find the best products and deals.
Based on your request for non-asbestos brake pads, I would recommend the Shimano Xtr Brake Pads M07TI Rn for R299. Shimano is a well-known and reputable bike parts brand that does not use asbestos in any of their brake pads. These XTR brake pads will provide excellent performance and durability for years ofuse. Since you mentioned your budget is under R300, these pads fall within your price range as well. Please let me know if you need any other details. I hope these pads will serve you well on your rides!