Check the listing for details. Biokemp D Smoking Filter Tips, 100 Units, Re-Usable Filters. Condition: New. Listed at 100.00 USD. Have you ever searched for custom filter tips online? You were probably disappointed in what you found. Biokemp's biodegradable custom filter tips are the ultimate solution. No more searching for cool filter tip designs; now, you can make them yourself and remember not to burn down to the tip. You can customize the icons, the size, and the color of the filters at Biokemp.net. We have single and double customization. Our flagship and patented product is a biodegradable and reusable smoking filter that is made from hemp and corn starch. Beating fibrous cellulose acetate and glass at every turn, our filters are made from the USA-grown industrial hemp, creating a whole plant experience. Coated in micro-grooves, the filters cling to paper and expedite the rolling process. Each filter can be used three times, and remember not to burn down to the tip.