ISE blades are out of production, stocks dwindling.

[Query]

They have stopped making them.

ISE blades were more or less clones of much more expensive blades from companies like MK and JW.

E.g., the ISE Sabre Dance blade - the closest that was available comparable to the MK Dance (and like it was a Chrome plated high carbon steel blade, with slimline cut at the bottom, but with somewhat less aggressive toepicks, same 7' main rocker but somewhat different spin rocker) is out of stock at both Jerrry's skating world, whose brand name ISE is (and might have been the manufacturer), and its retailers. 

They were available a few weeks ago for $75, which was a great price. I waited too long to get them...

https://figure8.ca/shop/index.php?route=product/product&product_id=2123 has a few left, but NOT in my 9 3/4" size. I'd consider 9 1/2", because my desired length is borderline, but they don't  have those either.

Jerry's still has a lot of Sterling blades in stock. So do other retailers like https://figure8.ca and https://figureskatingstore.com.

But they aren't slimline dance blades. They are stainless steel.

I didn't check on their other blades.

One of those two retailers told me that Jerry's is considering getting an alternate manufacturer.