QUALITY REPLACEMENTS: Our replacement shelf support pins are identical to, and fully compatible with the IKEA part 131372. Constructed from a premium die-cast zinc alloy, they boast exceptional durability and quality. These pins have been designed to ensure a flawless fit with the very popular BILLY bookcase. COMPATIBILITY: These shelf pins exhibit compatibility with a range of IKEA furniture items, including beloved pieces like the BILLY bookcase, the SONGESAND wardrobe and nightstand, the EKET Cabinet with shelves, the LOMMARP cabinet and TV unit, as well as the IDANAS wardrobe and many more. If your assembly manual specifically calls for part 131372, rest assured that these replacements are the perfect solution to meet your needs BILLY BOOKCASE: Notably, these have been tailored to fit flawlessly with BILLY bookcases from 2013 onward. For owners of pre-2013 BILLY bookcases, it's recommended to use the alternative part number 121762, ensuring a precise fit for older models. Search our store for part 121762 if you have an older BILLY bookcase. EASY INSTALLATION: Installing our replacement pins is a breeze, requiring no tools whatsoever. The user-friendly design allows for a quick and hassle-free installation process, ensuring your convenience and ease of use. Extending the lifespan and minimizing unnecessary waste with these shelf support pins. TAILORED QUANTITY: Our replacement shelf support pins offer a range of quantity options, enabling you to select the precise amount required for your furniture assembly. This considerate strategy not only reduces waste by providing the ideal quantity but also translates into cost savings for you. Our replacement shelf support pins are designed to be 100% compatible with IKEA part #131372. Crafted from sturdy die-cast zinc alloy, they ensure long-lasting durability. Specifically tailored for the BILLY bookcase, these pins also fit seamlessly with SONGESAND, EKET, LOMMARP, IDANAS, and more. If you own an older BILLY model predating 2013, check out part number 121762 instead for a precise fit. Installing these replacement pins is a breeze – no tools required. Simply install them by hand for quick and easy setup. Moreover, our replacement shelf support pins offer a variety of quantity options, allowing you to choose the exact amount you need for your furniture assembly. This smart approach minimizes waste and helps you save on costs.