Yes. A baggage gauge can be made to the airline’s exact permitted external dimensions so passengers and staff can check whether a bag fits the allowance. The specification should state whether wheels, handles and external pockets are included, plus any manufacturing tolerance and the relevant fare or cabin class. 

Yes. A gauge can incorporate more than one measuring aperture or clearly separated checking area for different bag sizes. This is useful where an airline has separate personal-item and cabin-bag allowances or where a shared airport station serves several carriers. Each aperture should be clearly labelled to avoid passenger confusion. 

Yes. The frame can carry airline colours, logos, dimensional information and simple instructions showing how the bag should be placed. Clear graphics improve consistency and help passengers understand the result without staff intervention. Artwork and wording should be approved before manufacture and designed to remain legible in a busy terminal. 

They can be designed as lightweight mobile units with wheels, allowing staff to reposition them between check-in, security and boarding areas. A portable gauge still needs a stable base, controlled movement and suitable brakes or parking arrangements where required. Its dimensions should also allow it to pass through terminal routes and storage areas.