The Black Mamba 3X4 Adjustable Wide-Body Squeegee with 90-degree angle cut ends was the very first revolutionary wide-body squeegee. Sörbo set a new standard for the window cleaning world. Previous squeegees were only made up to 24″. The adjustment slots or settings in the Sörbo 3X4 Black Mamba channel allow you to reposition the rubber/blade to the desired firmness. Accompanied with the Sörbo Fast Release handle, Item 1385, you have a 40° angle. In order to prevent streaks on the window, lead with the top of the squeegee. Sörbo invented the Black 3X4 Adjustable Wide-Body squeegee in 1986. Note: All of these squeegees have their size (in/cm) imprinted on them after the Sörbo logo.