Simplify your workflow even more! Now you can tamp your coffee grounds right after you dose with a dosing funnel. A tamp-through-funnel (TTF) extender for the likes of Strietman and SWD Step Down. Simply combine the TTF extender with a standard 49.5mm base plate. The TTF extender: 1. Adds 17mm of reach 2. Comes with two long springs: A heavy blue spring and an extra-heavy red spring 3. Works with all HAPPY TAMPER bases Prices are in U.S. dollars. In addition, depending on where you are, you may be asked to pay VAT or custom fees by your local authority.