We supply many train companies from Eurostar to Thomas the Tank engine (the TV company used a range of train, bird and orchestral whistles). Historically many railway companies had the Thunderer 58, a metal whistle and the Thunderer 558, the plastic version, some had to be different which is why there are so many metal and plastic Thunderers to choose from. Oddly enough it's no different today. We supply many stations and they all order different plastic Thunderers. Below we have some specialist railway whistles.