The plantar surface of hind paw

can someone tell me where is the mid-planter surface of mouse hind will be better if there has picture

This is rat, but I consider this portion here between the footpads the location where I want to apply a stimulus such as von Frey or pin. If for some reason you truly wanted the middle of the paw, you could go where that red line is.

@CandlerPaige @ShanTan @tberta