In recent years, fitness-minded people who tend to experience a lot of muscle tightness and lack of flexibility after workouts have found relief in foam rollers like this one, especially if they can't afford to see a masseuse regularly. The same is true for people who sit at a desk all day and use such a roller to relieve lower back pain.

The AmazonBasics 36" foam roller was recently selected by The Sweethome as the best option for most people:

There isn’t a ton of difference among the ubiquitous firm-density black foam rollers made of EPP (expanded polypropylene), at least in terms of their therapeutic benefits. What set the [AmazonBasics roller] apart from others is two-fold: its bargain price and its slightly rough texture—sort of like those nonskid grips you’d affix to a tub—that helps keep it from sliding out from under you when you are rolling or using it for your exercise routine.

While some consider the science to still be out when it comes to foam rollers, try one for yourself and you'd be surprised how well it can help you loosen muscle tension and work out those knots that have been bugging you. With the right exercises, it can also increase your flexibility. There are loads of articles and YouTube videos out there on foam rolling, so do some research before buying.

Get the AmazonBasics 36" foam roller for $19 at Amazon.

Note: In the unlikely scenario that the AmazonBasics roller ever sells out or becomes pricier than the competition, the Reehut 36" foam roller is a good alternative for just a few bucks more, and comes with an 18-page ebook on proper rolling technique and safety.