My children are fans of the TV show Chuggington, and as a result we have quite a collection of diecast engines from the series which we have owned for two years. The series is about three trainee engines who are learning all the skills they need to work in the town of Chuggington. Koko is one of the three trainees. She is a lovely looking green and purple electric bullet train in the show, known for her speed and her friendliness. She is a very enthusiastic character on the show, and my boys really enjoy this little engine.

Firstly, although she is a female character, I am pleased that she has not been given a really feminine colour. The purple, white and green paintwork makes her look quite pretty without looking too girly for being a part of the gang with the boys. Unlike some of the engines from the show, there are no moving parts on this engine, though there are some lovely highlighted features, such as the three silver horns on the roof, two fans, or the grilled window area. The lovely paintwork manages to make this engine look unique from the other characters in the show.

The top part of the engine is diecast metal. The base is made from a tough plastic. The 8 wheels all move round freely, so these engines can be moved along the floor or a table, as well as along a track. The engines can run on the Chuggington track you can buy, but we also have an Ikea train set, and a thomas set, and they run as well on both of these sets. These engines have a really well thought out coupling system with a ball at the front of the engine, and a socket at the rear. My children have great fun making a great long convoy of trains, and the linking system is strong enough to pull about 20 trains without any breaking away. It can derail though if they are pushing it fast round the track. This system is also strong enough to take some weight if the child carries it round in their hands, which is reassuring as these are quite heavy and you don't really want them to drop on your toe.

The only problem we have had with these engines are the paintwork does chip when they are played with a lot. This one doesn't look too bad though with it having the dark purple and green round the edges that get the most hammer from bumps. The only bit that looks a bit bad is Koko's nose is a much lighter green, and this has one bad chip on it.

The series is enjoyable to watch, and the engines that we own really do capture some of the characters personalities. My children really do enjoy playing with these engines and recreating the things they have seen in the show. I highly recommend these diecast engines for children who are fans of the show.