SILVER SPRING, Md. -- Now you can spin your way to tighter and more toned stomach muscles -- at least that's what the Red Exerciser promises.

Red's secret is that it rotates and twists the core and torso through a circular range of motion that tightens and tones muscle, News4's Liz Crenshaw reported. Infomercial hosts Gary Franco and Rachel Reenstra are excited to their core about it. The infomercial claims the Red Exerciser tones tight core abdominals and shrinks the waistline.

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Consumer Watch sent the Red Exerciser and its infomercial to Stefanie Campbell in Silver Spring, who contacted Consumer Watch because she had her daughter, Amelia, 5 months ago and the red exerciser promised to help her lose her "baby pooch."

The Red Exerciser cost $130 plus $20 shipping, and for that price, it promises to sculpt a slimmer new you.

Campbell had been using the Red Exerciser for three weeks before Crenshaw showed up.

"OK, Stefanie, this is the Red. What's the basic idea here?" Crenshaw asked.

"The basic idea is you sit on the stool, you squeeze your abs and all your core muscles, sit up straight, squeeze your muscles, look straight ahead, and all you have to do is twist," Campbell said.

The Red comes with a DVD that puts you through a 20-minute routine. It also comes with a nutrition plan that Campbell did not follow because she is nursing. Campbell used the machine three times a week for three weeks, 20 minutes each session.

"Does it put you out of breath?" Crenshaw asked. "Do you actually feel like you're getting a workout?"

"I do feel like I'm getting a workout," Campbell said.

"And where do you feel it?" Crenshaw asked.

"I feel it mostly in my abs," Campbell said. "Sometimes, the leg exercises, I actually feel it in my thighs."

Campbell said the device was easy to assemble, and that its only mechanical flaw was the handles -- they squeaked a bit. She also liked the tension knob that she used to make her workout a little tougher.

But Campbell had a problem with one of Red's main advertising claims: the number of inches she could lose off her waist.

"I measured in two different places," Campbell said. "In one place, I lost three-quarters of an inch, and in the other place, I lost 2 inches. Which, that's great, but it wasn't what I was hoping for."

The Red Exerciser says its program consists of exercise, diet and lifestyle modifications, and individuals' results vary. Red says it's thrilled that Campbell lost 2 inches, which is two dress sizes. Also, Red will replace the handles if they squeak.

But Campbell still has reservations.

"So the Red," Crenshaw asked, "does it really do that?"

"Not for me," Campbell said.

"Not for you. And for $150, would you buy it?" Crenshaw asked.

"No."