I am looking to buy a/some resistance band(s), mostly for glute work to be honest, but I am not sure which "strength" to buy with the options for resistance being as follows; 11-36kg; 23-54kg; 27-68kg; 32-79kg.
The idea is to put it around my knees and do crab walks etc. and also to around my knees when I do my warm-up squats to activate the glutes more. I will expand range of exercises more in the weeks to come as I read more on them. My gym is in Africa and very low tech with very little equipment hence why I am looking to buy them.
I really am at a loss about which to buy though.
Any help would be appreciated