Karma 1 Box Perforated Biodegradable Handmade Regular Filter Tips 50 Tips Total Introducing Karma Tips a Range of handmade, biodegradable filters for RYO market ... that grows plants as it degrades. These RYO Filters contain tiny plant seeds that grow into vegetables, herbs, spices and flowers. They sprout in about 14 days and completely biodegrade in nature in just 28 days.