Hi @denisedalem,
Welcome to the Dyson Community!
Sorry to see this has happened to your Dyson Outsize vacuum. These are part of the shroud wiping mechanism, which automatically wipe any clinging hair or debris from the perforated metal shroud as you empty your machine’s clear bin. They’re normally fixed in place at the top of the bin.
If you haven’t been able to reinstall these parts, our recommendation would be to order a replacement Bin assembly from Dyson.com.
If the part you need isn’t currently in stock, please use the Notify me option so we can send you an email alert as soon as more stock is available.
Hope this helps!