The Knot Ball

For the knot that's been there since Monday.

★★★★★ 4.8 · 342 reviews

£44.99

~~£54.99~~ £44.99

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Free UK delivery, tracked · 30-day money back guarantee.

Eight hours at a desk and the tension builds so slowly you stop noticing it.

Until you stand up. By 6pm your lower back is complaining. Your shoulders have been up around your ears since 2pm. You know the feeling.

This holds against the tight spot, vibrates through it, and lets it go. No mat. No floor. No effort.

612g

Light enough to hold one-handed

150 min

Working time from one charge

USB-C

Charges with the cable you already own

Quiet

Use it without turning the TV up

Why the Knot Ball

Recovery tools were built for athletes. You sit for eight hours a day — you don't need a foam roller on the floor or a massage appointment you'll never book.

The peanut shape sits either side of your spine, so the vibration reaches the tension without pressing on bone. Hold it against the tight spot in your desk chair or on the sofa. Three minutes and it lets go.

How it works

Find the spot

Hold the Knot Ball against wherever the tension is sitting — lower back, base of the neck, shoulders, hips. The peanut shape sits naturally alongside the spine.

Press the button

One button. Choose your intensity. The vibration starts immediately and works through the muscle.

Let it release

Hold it there. The vibration does the work — you don't have to press hard or move it around. No mat, no floor, no effort required.

Specifications

ShapePeanut double-ball

MaterialSoft silicone exterior

VibrationMultiple intensities

ChargingUSB rechargeable

SizeCompact handheld

ColourBlack

CertificationCE, FCC, UKCA, RoHS, EMC

UseBack, shoulders, neck, hips, glutes

NoiseLow-noise motor

Free Delivery & Easy Return

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30-day money back guarantee

Use it for a fortnight. If it does not work for you. Send us an email @ order@kosient.com. We will take it back and give you full refund.

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Free UK delivery

Tracked as standard.

FAQ

Why peanut shaped and not round?

The two-ball shape sits on either side of the spine or muscle group — pressure goes into the muscle, not onto bone. More comfortable and more effective than a single ball for back and shoulder use.

Do I have to press hard?

No — the vibration does the work. Hold it lightly against the tight spot and let it work through the muscle. No pressing, no rolling required.

Can I use it while sitting on the sofa?

Yes — designed for exactly that. No mat, no floor, no getting changed. Sofa, desk chair, or bed.

What if it doesn't work for me?

30-day money back guarantee.