Chirp
DealExercise wheel for back pain relief
Best known from its Shark Tank appearance, Chirp is a exercise wheel for back pain relief in Season 12, and convinced Lori Greiner to invest.
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From the show
The Shark Tank pitch
- $900K
- Asked for
- 2%
- Offered equity
- $45M
- Sought valuation
- $900K
- Deal amount
- 2.5%
- Deal equity
- $36M
- Deal valuation
Tate Stock walked into the Tank in Season 12, Episode 3 in the episode that aired October 30, 2020. Chirp, the exercise wheel for back pain relief, pitched in the Sports & Outdoors category, one of 154 sports & outdoors businesses to brave the Tank across all 17 seasons.
On the carpet, the number was $900,000 for a 2% stake, which valued the company at $45M.
Lori Greiner made the deal at $900,000 for 2.5% equity. That priced the company at $36M, a haircut from the $45M the founders walked in asking for, which is how negotiations in the Tank usually go.
Chirp was one of 100 businesses to pitch in Season 12, where 71 deals got done. In the Sports & Outdoors category overall, roughly 64% of pitches have landed a shark across the show's history.
The full story
Everything to know about Chirp
Chirp makes spine-shaped wheels and recovery tools designed to ease back tension, with its best known product being a foam-roller wheel you lie back over to stretch and release tight muscles. The company was founded by Tate Stock, who started selling the wheels online before the brand was even called Chirp. He built an audience early through online marketing and customer testimonials, which proved there was real demand for an affordable at-home back relief tool.
Tate came into Season 12 with strong numbers and asked for 900,000 dollars for a very small equity stake, signaling a high valuation backed by sales. The pitch leaned on the product already being a proven seller rather than a concept. Lori Greiner, who knows the recovery and wellness retail space, engaged and worked out a deal structured around a repayment timeline plus a modest equity piece, reflecting the company's healthy revenue.
Chirp stood out because it arrived at the tank as an established business, not an idea looking for funding. The wheel's simple shape and clear use made it easy to demonstrate, and the brand had already built trust with customers seeking drug-free back relief. That combination of a real product, real sales, and a recognizable form factor made the pitch memorable.
Where Chirp is now
After airing, Chirp used the renewed attention to broaden its range beyond the original wheel into vibrating rollers, massage tools, and other muscle-recovery products. The brand pushed hard on direct online sales and retail placement, building on the momentum from the show and its strong pre-existing customer base.
As of 2026 Chirp is still operating, selling through its own website at gochirp.com and through major retailers. It has continued to release new recovery products and maintains a large customer following. The company has grown into a recognizable name in the at-home wellness and recovery category rather than a single-product brand.
Where to buy Chirp
Chirp products are available on the official site at gochirp.com and through retail partners that carry recovery and wellness gear. The flagship Chirp Wheel comes in different sizes that offer gentler or deeper pressure, and the brand also sells vibrating rollers and other massage tools. For people with general back tightness who want an affordable, no-electricity option, the wheel is worth trying. Anyone with a diagnosed back condition should check with a clinician before relying on it.
Is Chirp still in business?
Read our 2026 update on where the company is now.
Sold on Chirp?
Check today's price and availability before it swims away.
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Frequently asked questions
Where can I buy Chirp?
Check current price and availability on Amazon. Note that some Shark Tank products are discontinued or sold under a new name. The company's official website is another option.
Did Chirp get a deal on Shark Tank?
Yes. Chirp closed a deal for $900,000 in exchange for 2.5% equity, with Lori Greiner.
Which shark invested in Chirp?
Lori Greiner invested in Chirp ($900,000 total as aired).
What season of Shark Tank was Chirp on?
Chirp appeared in Season 12, Episode 3, which aired October 30, 2020.
How much was Chirp asking for on Shark Tank?
The founders asked for $900,000 for 2% of the company, a $45M valuation.
What is the Chirp Wheel used for?
The Chirp Wheel is a foam-roller style wheel you lie back over to stretch the spine and release tight back muscles. People use it for general tension relief, posture, and recovery after sitting or training.
Who founded Chirp?
Chirp was founded by Tate Stock, who began selling the back-relief wheels online before pitching the company on Shark Tank Season 12.
Is Chirp still in business?
Yes. Chirp is still operating in 2026, selling through gochirp.com and major retailers, and has expanded into vibrating rollers and other recovery tools.
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