My 10-year-old son and I built this papier-mâché, foam and cardboard crawling course. It’s not perfect, but we mix sand and glue in and painted it camo color. He’s ready to sell it so he can buy some tires for his bronco. Haha. It’s about 3‘ x 5‘ and light enough for one person to pick up. Had a bead pit with glow in dark air soft pellets, but we’re keeping those. Trx4m, axial scx24, scx30, redcat