Those sheers look like cheaper heavy duty sheers. I picked up similar ones for like $15 in downtown LA. they are about 10inches long and made of forged steel just like gingher. My ginghers were real nice and all for lighter fabrics, but honestly these bad boys do a much better job cutting heavy material like denim.
The best scissors I found by far though are some cheap kevlar sheers. These fuckers will go through anything heavy like butter: