It appears there might be a discrepancy or error in the product description. The details provided seem to mention two different Trico wiper blades: one as the "Trico Exact Fit Slide Lock Beam Blade" and the other as the "Trico Exact Fit Fitted Zone Beam Blade," both designed for a 610mm/24-inch size, with the respective designations EFB610SL and EFB610.

The information provided indicates that the first blade is designed for slide lock wiper arms, particularly for Mercedes vehicles equipped with slide lock wiper arm mechanisms. Meanwhile, the second blade is described as a fitted zone beam blade, implying compatibility with a different type of wiper arm system.

It's crucial to ensure the correct compatibility between the wiper blade design and the specific wiper arm mechanism in a vehicle to ensure proper fit and optimal performance. Users should confirm the wiper arm type required for their vehicle before selecting the appropriate wiper blade for accurate fitment.