420Pcs Nitrile Rubber O-Rings Kit 15 Sizes Universal NBR Metric Washer Gasket Assortment Set for Hydraulics, Pneumatics & Plumbing Sealing Repair,Resist Oil and Heat,Air or Gas Connections

The 220Pcs Nitrile Rubber O-Rings Kit has garnered a generally positive reception among users, especially those involved in hobbies like remote control (RC) vehicles. The assortment's versatility is highlighted, with users praising the variety of sizes included—making it a useful resource for various applications, from automotive repairs to plumbing needs. Many reviewers appreciate the comprehensive selection, indicating that the kit contains nearly every size one might need. However, some users expressed concerns over the small size of the rings, noting that there are an excess of very small O-rings that may not be as useful for their projects. There were also comments regarding the lack of certain tools that were expected to accompany the kit, suggesting a minor slip in quality control or completeness. Additionally, while users found the O-rings to be effective for general purpose use, there were questions regarding their resilience and suitability for use with solvents, hinting at a possible limitation when it comes to more demanding applications. Overall, the product delivers on its promise for most users, especially those with specific niche needs like RC maintenance. **