These have been featured in the current Asda Baby Event and were first priced instore at £19 and are now reduced to £17 (still scanning at this price this afternoon).
Online though they are priced at a very reasonable £12.50. Delivery is extra but you can collect in store for free.
£23.99 on Amazon.
£24.99 in Boots.
Reviews are fairly good and it suits our needs perfectly. Have ordered one to collect from Oadby, Leicester.