Which ab roller should you actually buy

Ab rollers look interchangeable in a product photo. They are not, and the difference decides whether you actually use the thing or give up in week two with sore knees and a sore lower back.

Here is how to pick, in the order that matters.

1. Wheel width decides how hard it is to learn

A single narrow wheel is unstable sideways. That sounds like a feature, and for an experienced lifter it is, because stabilising the wobble is extra work for your obliques. For anyone in their first few months it is just a way to turn an ab exercise into a balance exercise.

A wide or double wheel tracks straight. You push forward, it goes forward, and the only thing you have to fight is the one thing you came to fight.

If you have never done rollouts, go wide. The beginner double wheel exists for exactly this. You can move to something narrower later if you ever want the extra instability, though most people never need to.

2. Knee padding decides whether you finish the set

This is the one people underestimate. On a hard floor your knees will quit before your abs do, every time, and you will blame the exercise.

Both of our rollers ship with a knee mat. If you train at home on concrete or tile, foam floor tiles solve it permanently and solve a few other problems at the same time.

3. Elbow support changes the exercise, not just the comfort

The 3-in-1 roller has elbow rests. That is not a padding upgrade, it is a different starting position.

From your forearms, the lever is shorter. Less of your bodyweight is hanging off your middle, which means you can hold a flat lower back through a range you could not hold from your hands. That is genuinely useful: it lets you train the movement properly while you build toward the full version instead of doing a bad full version for months.

It also has a rep timer, which matters more than it sounds like it should. Rollouts are a movement people rush, and rushing the return is where most of the benefit gets thrown away.

So which one

• Never done rollouts, training on a budget: the beginner double wheel. Stable, cheap, does the job.
• Want to progress properly, or your lower back takes over: the 3-in-1 with elbow support. The forearm position is what lets you build range honestly.
• Already strong at rollouts: either. At that point the wheel is just a wheel and you are chasing standing rollouts anyway.

The part no roller fixes

Range. Almost everyone rolls out too far, lets the hips sag, and turns it into a lower back exercise. Stop where you can keep your ribs pulled down and your lower back flat, hold for a beat, and come back slow. Add a couple of inches when the current range stops being hard.

Three sets of five to eight honest reps, twice a week. That is enough. We wrote the full version of this in ab rollouts: why your lower back takes over.