Scrollbar on Products

Hello All,

I know it’s my theme but I can’t seem to fix it … I get a scrollbar on some of my products (especially those with a ‘no image’ and with a ‘sale’ tag on them) – any advice or help?
– Joe

See; https://thelearninglizard.com/science/supplies/biology/

The page I need help with: [log in to see the link]