The Polar set offers a little bit of a challenge to your youngsters. They all have a rounded lip just like a cobble does so they do get enough of a hold to succeed but not so much that they can jump around like a monkey; because we all know monkeys don't live in either polar cap :)
METRIC t-nuts
The best selling Down Climbing hold from our line. 100% 5-star reviews. Over 125,000 sold.
An adult hand easily fits inside this handle bar ring.