We couldn’t be happier with this volume pair!!! They’re so sticky, and grippy, the kiddos love them. One thing to point out however, on the website in the cluster of pictures at the top, the dimensions in that photo are incorrect! The dimensions are correct on the pdf and also on the picture towards the bottom of the website, but I thought I was getting much larger volumes not a big deal as we love these! I’ve used them to set compression, mantels, and currently a fun swing over (for the lime green route) for the adults. Isabella (Izzy 9yo) is in the photo, and loves using them to make her own routes! I’ll for sure be ordering another set at some point. You will not be disappointed! The Erickson Family