The Silverado is our economy line of Sörbo 3X4 Adjustable wide-body squeegee with 90degree angle cut ends. The squeegee rubber blade is secured by 2 exterior end clips. It may be sold with or without our aluminum handle. The adjustment slots or settings in the Sörbo 3X4 Adjustable squeegee channel allow you to reposition the rubber/blade to the preferred firmness. For 5” to 30” Squeegees: set rubber to 1st adjustment slot = FIRMER Rubber, or 2nd adjustment slot = SOFTER Rubber. For 36” Squeegees: 2nd adjustment slot = FIRMER Rubber, or 3rd adjustment slot = SOFTER Rubber. Accompanied with the Sörbo Fast Release handle, Item 1385, you have a 40° angle, and when the 3X4 Adjustable squeegee is flipped and secured into a backward position, it has a 5° angle. In order to prevent streaks on the window, lead with the top of the squeegee. Sörbo introduced the Silverado squeegee in 1995.