Review on Allstar Performance ALL40108: Efficient 1 Pint Funnel with Extension - Streamline Your Fluid Transfer Process! by Bob Randles

The black part of the funnel (tube) is very small. this is normal most of the time, especially since I pour oil through the dipstick hole on a Subaru. Though it's no fun when it comes to thick gear oil. It will take some time. I only gave it 3 stars because the tubing itself is cut to flex every 2 inches or so. I wish my old funnel was flexible throughout, but it works, but the funnel (red part) isn't very stiff either.