This is a set of the smaller in between sizes.
sort of frowned upon as it is said you should appreciate the big jumps of 4kg . If you can’t work with the bigger bell.... use the smaller one until you can.
But it’s ok, you can use these too.
Fun fact , these windows and smaller then the evens set. And the handle slightly different.
it will make that deal harder due to physics involved on the angle and lever arm. I’m no physics major but I sure know that a smaller window makes things much harder... especially with heavy loads.
that’s why when I designed the large tweener bells with Zack and Karl. We decided that the larger window is a good idea as those bells are hard enough as is.