Things that make you go hum

I am looking at a website for company that rents equipment for landscaping and excavating. While looking down the list of the equipment they carry I see they I can rent a "small limb shredder"

Now I'm wondering, what exactly falls under the classification of small limbs? I'm sure the baby's arms are still considered small. But what about mine? Are mine still small limbs? I'm sure my legs and my massive post-baby thighs are surely now considered large limbs. (and if I eat any more of this phish food sitting in front of me they will most certainly become extra-large limbs before too much longer.)