The handholds on the walls are spread out such that most children can grab two at once without a lot of trouble, although the littler kids have to stretch. Sindri can manage it with some pairs of handholds but not others; Oat has no hope. Oat, therefore, spends his time on learning how to accurately propel himself from one handhold to the next, and Sindri copies his tricks, finding them more useful to him than the official maneuvers designed for people less tiny.