Every bit as good as Lincoln Logs, and at a way better value!  Yes, kids CAN break them, but only if they're playing with them like out-of-control beasts.  These stand the test of time. Refreshing change of pace from the electronic, blinking, noise making, cheap (but expensive) plastic toys.  It's nice to buy toys that DON'T do all the imagining FOR the kids.  Too much built-in detail in most toys today teaches the kids to depend on OTHERS' imaginations, and retards their OWN creativity and problem solving. two thumbs up for frontier logs.