Hi there,
Thank you for taking the time to leave a review - we’re deeply sorry to hear about your recent experience with our products.
Our website advises that dolly codes 369321 / 369320 can fit either one 400 x 600mm euro container or two 300 x 400mm euro containers.
If you’d like to return your order, please contact our Customer Services team (0800 294 4440) within 14 days of the initial purchase, subject to T&Cs.
You can also contact sales@slingsby.com with your crate sizes - we’d be more than happy to advise on a dolly to suit your requirements.
We look forward to hearing from you soon.