This double-sided offbox snaplok quick release knuckle insert block is a must-have for any angler who is serious about freshwater fishing. It is designed for use with Preston rods and reels, and is perfect for attaching to a variety of terminal tackle. With its sturdy construction and high-quality materials, this kit is sure to withstand the rigours of all types of freshwater fishing. Whether you are a beginner or a seasoned angler, this snaplok quick release knuckle insert block is easy to use and will help you to catch fish more effectively.