You do have to decide whether they will work in your application, so p lease have a good look at the photographs which show them from above so you can see the size (approx. When unstretched, the tyres have a width of c.0.8mm and depth of c.1.0mm. ).
TRACTION TYRES - N GAUGE LARGER STEAM LOCOS (8 OFF)
Fleischmann 948008 Traction Tyres 4.9mm x 1.2mm (PK10) & Lima N N Gauge
379-427 Graham Farish N Gauge N Class Traction Tyres x10
Fleischmann Traction Tyres 4.9mm x 1.2mm (10) N Gauge FM948008
Fleischmann Traction Tyres 4.9mm x 1.2mm (10) N Gauge FM948007
Fleischmann Traction Tyres 6.95mm x 1.2mm (10) N Gauge FM948005