Good bag but if you use old inner tubes not tpu get the size up at least. I've got two tyre levers, two tpu tubes (in a bag to protect them from cuts etc) and the Topeak mini tool. There are two little pockets (one mesh) I would put the mini tool in the top one but because my saddle is way forward the seat post digs in at that point(see photo) this makes it a tight fit but should be okay for most people I just put it in the main compartment.