I've worked out at home for years, but only recently have I begun incorporating exercise bands into my strength training.  I've had a few flat-type bands that have wound up getting worn and snapped over time, so I wanted to invest in a higher-quality band.  Happily, this SPRI tubing perfectly fit the bill WITHOUT breaking the band!  This is a very sturdy, very versatile little piece of exercise equipment.  You can use it to replace weights in your usual workouts, which allows you to work your muscles in some new and unique ways (refer to the included exercise chart for ideas).  When at home, you can actually use the tubing WITH your weights to add greater resistance throughout the entire muscle movement, OR you can pack your tubing with you when traveling--so light and convenient!  Finally, the included door attachment is easy to use and allows you to perform an even greater variety of exercises.  I wasn't sure which strength tubing to purchase, but I am an intermediate to advanced exerciser, and the medium (red) is perfect for me, as it is easy to adjust for either more or less resistance when needed.  Highly recommended!