Got a mini engineer at home who loves to build? There's now 50% off this K'NEX Looping Light Up Roller Coaster at Argos, making it just £24.99 down from £49.99!
This is a motorised looping roller coaster set to build, with a chain lift to send the car up and spiralling through the track.
The set comes with a light up coaster car and a glow-in-the-dark track that is only available in this pack.
It does look tricky for younger children, as it comes with 448 parts, mainly rods & connectors, so it's recommended for ages 9 and upwards.
The reviews are great, so at half price this is one to stash away now for birthdays.
There are lots in stock for free reserve and collect, or home delivery costs £3.95.