The blue Q2 are high spec transfers boards for larger people. These were from an Ambulance service. I have several of these in similar condition. They may have writing on or scratches and signs of heavy use.

Brand: Banana Board
Type: Lift
Unit Type: Unit
Manufacturer Warranty: Expired
Model: Glide Board
Material: Rubber, non-sticky material, Fibre - plastic
Features: Durable, Portable, Reusable, Travel Size, Waterproof
MPN: Samarit Medical AG
Unit Quantity: 1
Country/Region of Manufacture: United Kingdom
Colour: Blue