A textured peanut-shaped roller that straddles the spine and gets into the glutes where a flat roller can't.
A flat roller presses everything in a line; a ball goes after one spot. The TriggerPoint Universal Double Massage Ball is both halves of that idea in one piece: two textured spheres joined in a peanut shape, 8 by 5 in (20 × 13 cm), in EVA foam. The maker designs it to sit with one half on each side of the spine, so the muscles along the upper back get pressure while the spine itself rests in the gap, and the same shape works under one glute or a hamstring.
It is small – under a pound, the size of a large water bottle lying down – so it lives on the top tier of a cart or in a gym bag, and it is water-resistant. The listing is unclear on firmness (“firm or extra firm”), and the texture is a lot on a sore muscle the first time.
Tip: On the upper back, lie on it with knees bent and let the spine sit in the middle groove; never let either ball rest on the spine itself, and keep it off the neck and the lower back.
Rester's Choice
cold on the quads or hamstrings after leg day, warm on the low back later, a freezer shelf kept for recovery
Amazon Basics
a recovery kit that lives by the door, the garage or the end of a hallway, rolling the whole kit to wherever you stretch, small apartments
Amazon Basics
lying lengthwise to open a rounded upper back, slow rolling of the mid-back and thighs, a corner with 3 ft of clear floor