UTC Viny D Rib - The translucent half round ribbing material of the Vinyl ",D", Rib has just the right amount of stretch. This material is ideal for creating segmented bodies. The large size is great for large stoneflies, streamers, and saltwater patterns. Use the medium size for crazy charlies, stoneflies, and large nymphs, Use the nymph size for small to medium nymphs and the midge size for midges and small nymphs. Translucent half round materialMany uses for segmented bodiesJust the right amount of stretch