Quantity Arrows on Cart page

[lee-chilli]

Hi,
I'm looking for a way to add the same function of the Quantity arrows on the product detail page to the cart page.
so far I've tired to use the same code found on the product detail page to reproduce this function but doesn't seem to work

Any advice or help would be great.

Thanks in advance

[sander_v_bergen]

I'd like to know the same.
I wonder why they aren't there on default.