Lucky you! I had gone to Home Depot and Lowes looking for those and started "loading" on the platform cart.... yeah! Didn't go any further than that..... that was just not gonna work loading, unloading, carrying them up little hill to the backyards... all about 100 of them.... luckily I was able to find little smaller ones, which are not ideal bcs I did want those nice big hollow spaces for planting... but those are the kind I have used to enclose my tortoise garden. It's not quite this same, mine looks a bit more "finished"Yes, I have planted some spineless cactus already and waiting on the mixed seed packet from Tortoise Supply to plant. I have so many ideas and it's a work in progress. My husband and a friend of his loaded and unloaded the cinder blocks but I moved and arranged them by myself.