Amsterdam Central Station lockers

Does anyone know if lockers are available at the central station in Amsterdam.? If so, are they a size that would accommodate a wheely type carry on bag?

Thank you

From the NS website: http://www.ns.nl/en/travellers/about-your-trip/travelling-by-train/facilities-at-the-station

Yes we have used them for a pull along case - wasn't that expensive. We just had to watch out because some homeless people us them - plenty of staff around as well

I much prefer the DropandGo independent luggage storage outlet in Nieuwe Neustraat, about 5 minutes walk from the station. The staff are very efficient and friendly and the prices are good, 4 Euros for a small luggage, 7 Euros for a large case. It saves trying to stuff luggage into a station locker and its not always easy to find an empty locker.