These tail rubbers are specifically designed for use with PVA bags and are much longer than our standard Tail Rubber. The extra length of the Solid Bag Tail Rubber allows you to moisten and twist the top of a Solidz PVA bag around it for a neat, secure closure. The Solid Bag Tail Rubber fits perfectly on any of our inline leads, sitting flush to reduce any chance of tangles. They are weed/silt in colour to blend in with the bottom, and you get ten in a pack.