Ravensburger GraviTrax: Loop Accessory | Marble Run & STEM Toy for Boys & Girls Ages 8 & Up | Accessory for 2019 Toy of The Year Finalist

I like this loop accessory but it needs a lot of speed for the marble to properly execute the loop. With that speed, things happen quickly so the marble is in and out of the loop almost too quickly to see, and the marble is fairly well hidden as it traverses the loop. I like the loop addition and I’d still buy it but if ranking additions for for visual impact I’d buy other additions first. On the plus side, there’s nothing to reset and once installed it works reliably and consistently.

Purchased the main set for my 8 year old son who loves building and constructions toys. He thought it was the coolest thing ever. Lots of different pieces and plenty of pre-designed tracks to set-up. Great product! We also got the expansions. The loop was neat, if you position it after the magnet launcher it shoots around really fast.

Products works great

The ball goes so fast that its hard to see the loop but if you do a video in slow motion you can see the ball looping

I needed something to get my son off of video games. I didn’t think anything would! He begs me to build a new track daily!

Arrived the day after Christmas disappointing, but my grandson loved it fit well with the starter pack and did what it advertised

You're definitely going to want these for more advanced building.

This is for our grandson is really enjoying this part went with the 0art his Dad gave that went

Mein Kind hat sich sehr drüber gefreut

Parfait pour mon fils de 10 ans

Great loop the loop. Excellent add on and works great. Bear in mind it needs quite a specific set up and a reasonable speed for it to work. My son found the cannon helped well with this one to build speed.This is a well worth it piece but not the easiest for slightly younger people. Saying that I would also defiantly recommend it!

Fue para un regalo de cumpleaños

Stimola la mente nella progettazione ed aiuta anche a sperimentare le leggi fisiche su gravità e velocità per i più piccolo e non solo. Buoni i materiali che conferiscono stabilità. Costoso considerati i materiali (per lo più plastica) e le numerose espansioni che servono per rendere il gioco più interessante.