| Compact passenger car — driver side | About 22–26 in (560–660 mm) | J-hook, side pin, pinch tab, or top lock | Confirm the exact driver-side length and the arm’s connector style. | Do not assume the two front blades are the same length; check the vehicle manual or existing blades. |
| Compact passenger car — passenger side | About 14–20 in (350–500 mm) | Often the same connector family as the driver side, but not always | Check passenger-side length separately and make sure the blade does not overlap or contact trim. | Compare the specified left-and-right blade pair rather than buying two blades of one length. |
| Sedan or midsize car — front pair | Often about 20–28 in (500–710 mm); the pair may use different lengths | J-hook, pinch tab, side pin, bayonet, or top lock | Verify both lengths and confirm that the included adapter fits each wiper arm. | A multi-adapter blade can cover several connector styles, but it is not automatically compatible with every arm. |
| SUV or crossover — front pair | Commonly about 18–28 in (450–710 mm), depending on vehicle | J-hook and several proprietary or low-profile arm styles | Check for clearance near the hood, windshield edge, and opposite blade throughout the sweep. | Use a vehicle-specific fit guide when available, especially if the original arm has an unusual connector. |
| Hatchback or SUV — rear window | Often about 10–16 in (250–400 mm) | Rear-specific hook, button, pin, or molded connection | Rear arms and blades may use a different attachment from the front blades. | Check rear-blade fitment separately; a front multi-adapter blade may not fit the rear arm. |
| Vehicle with a J-hook arm | Use the length specified for the exact position | Curved J-shaped hook, commonly secured by an adapter cover or latch | Make sure the adapter locks firmly onto the hook and the blade pivots freely. | Confirm the hook size and adapter instructions before installation. |
| Vehicle with a side-pin, pinch-tab, bayonet, or top-lock arm | Use the length specified for the exact position | Pin, side-release tabs, flat bayonet, or top-mounted locking button | Match the arm type to the correct included adapter; connector names can vary by manufacturer. | Test that the adapter is fully seated and locked before operating the wipers. |