The Renzetti Deluxe Stem Support Risers are premium replacement or accessory components designed to provide enhanced elevation and stability for the stems of your Renzetti vises. Made from durable, high-quality materials, these risers ensure precise alignment, smooth operation, and reliable performance. Ideal for both freshwater and saltwater fly tying, they improve ergonomics, reduce fatigue, and help maintain consistent, professional-quality results while tying intricate patterns.