Gymnastics tumbling mat (Berry Lane Estate WD3)

4 metre gymnastics tumbling mat with pump. Needs a bit of a clean but it’s been in storage for a couple of years and it’s easier to do when pumped up. Unfortunately it has a slow puncture which I’ve not managed to find - it is fine when first pumped up but does then need pumping up a bit each time it’s used (we tended to leave it in the garden over the summer).