Heavy kettlebells

I’ve had a 40kg kettlebell for almost 10 years now, which I bought for swings and to use for weighted chin ups and dips. At the gym I mainly have students use it for deadlifts, as I find KB deadlifts are very handy for group classes - they are safer than a straigth barbell deadlift because the weight is below the COG rather than in front of it; the set up is simpler (you just roll the KB out, no need to put plates and collars onto the bar) and the space required is minimal; plus, you get a sort of constant tension throughout the whole movement, as opposed to just at the beginning or the end.
So, around this time last year I took advantage of a sudden discount and bought 3 other big kettlebells - a 48, a 56 and a 68 - to increase the progressive overload potential. I’ve been keeping the 68 for myself and brought the 48 and 56 to the gym, and I’m happy to say that a lot of my students have now mastered the 56, so it’s likely that at the next discount I’ll get a 60kg!