The Cardboard Ramp

I walked over to the shallow cardboard box resting beside the living room rug. One corner flap was bent downward, creating an even, tilted slope to the floorboards. Under the rim of the low shelf, I spotted a loose wooden bead. I gathered it up in both hands and climbed carefully onto the base of the box. Kneeling at the top of the flap, I set the bead down and let go. It trundled cleanly down the cardboard ramp with a steady hum and tapped against the skirting board. The slope worked smoothly on the first try. idk what is this it just suggested it