Suntour WINNER ULTRA  6-Speed 13-4-5-7-9-21 Freewheel Chrome

Though I am grading it as used it seems to be in unused condition as it likely came from a take off of a new bike.

A remarkable 6 speed freewheel slightly narrowed to fit most 5 speed hubs. In practice a 1 mm washer might be needed on some frames for clearance but so what.

The Suntour WINNER ULTRA 6-Speed Freewheel is a high-quality bicycle component designed for compatibility with 5 or 6 speed friction systems. Made of durable steel material, this freewheel features a chrome color.. With a threaded BSA freehub/driver type and a unit height of 113.7 mm, it is suitable for a variety of bike types such as mountain bikes, road bikes, and hybrid bikes. The unit weighs 361 grams and is manufactured in Japan by the reputable brand Suntour