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Shark Tank Index
Chirp

Chirp

Deal

Exercise wheel for back pain relief

Chirp appeared on Shark Tank in Season 12.

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From the show

The Shark Tank pitch

$900K
Asked for
2%
Offered equity
$45M
Sought valuation
$900K
On-air deal amount
2.5%
Deal equity
$36M
Implied equity valuation

Tate Stock presented Chirp in Season 12, Episode 3. The episode aired October 30, 2020.

On the carpet, the number was $900,000 for a 2% stake, which valued the company at $45M.

Chirp reached a recorded on-air agreement with Lori Greiner for $900,000 and 2.5% equity. The record lists a $36M implied deal valuation, compared with the $45M requested valuation. These are the reported on-air terms, not confirmation that funding was completed.

Chirp appears among 100 Season 12 pitches; 71 are recorded as accepted on-air deals. Across 156 sports & outdoors pitches with known outcomes in the index, 65% are recorded as accepted deals.

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.

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Frequently asked questions

Where can I buy Chirp?

Check current availability on the company's official website. We have not verified an active Amazon listing for Chirp.

Did Chirp get a deal on Shark Tank?

Chirp reached a recorded on-air agreement with Lori Greiner for $900,000 and 2.5% equity. The record lists a $36M implied deal valuation, compared with the $45M requested valuation. These are the reported on-air terms, not confirmation that funding was completed.

Which shark made an on-air offer to Chirp?

Lori Greiner appears in the recorded on-air terms for Chirp. The deal answer above gives the recorded structure.

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.

Shark Tank Index may earn a commission on purchases made through links on this page. Deal figures reflect what aired; terms sometimes change after the show.

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