The Dremec 384/2.2X29 cylindrical polyamide spacer sleeve with a length of 29mm and an outer diameter of 4mm is a cylindrical sleeve used in many electronic products for insulation and spacing between components. It is typically used to fill gaps between other components, helping to reduce air gaps, and preventing against electrical shorts. This particular model has superior chemical, heat, shock, and vibration resistance, making it an ideal choice for applications exposed to high temperatures and extreme environments. Additionally, its material composition ensures minimal expansion and contraction in response to rapid temperature shifts.