The PUNCH mission features four 140-pound small satellites, each about 1-by-2-by-3 feet in size.

Or

The PUNCH mission features four 63.5 kg small satellites, each about 0.3048 m × 0.6096 m × 0.9144 m in size.

https://blogs.nasa.gov/spherex/2025/03/04/nasas-spherex-punc...