Precast concrete flower bed edging stones are easy ... Make sure they’re level, tamping down with a rubber mallet if needed, then backfill. Lights enhance the look of flower beds.

Obtain a representative concrete sample from the revolving drum ... For 6 by 12 inch molds use a 5/8 inch diameter tamping rod and a 3/8 inch diameter rod for 4 by 8 inch molds.