So, funny story. I've been using water blades for years, maybe decades to dry my car, and until a friend recently mentioned it, I'd never thought to actually sell them. So, in keeping with our golden rule that we only sell products we happily use on our Tesla's, here's our Water Blade!
Tesla's tend to be quite curvy, so the 12" blade (30cm) is the best option, as it'll get into the awkward areas around the rear licence plate and the front air splitters. Featuring an ultra-flexible medical-grade silicone, this version has the "T-bar' design; we tested this against the Y-bar, and found it to be much more effective.
These produce far less drag than a towel or a chamois leather, and there's far less risk of dragging grit around with it. Use the Water Blade to remove 90% of the water after washing, or after a car wash, then finish up with a clean, soft towel. Here in baking hot Dallas (at the time of writing) it's essential to clear the water quickly before it dries and leaves marks; with the blade, it's easy to get around our Model S and Model 3 in about 5 minutes per car.