Most of the hotel gym's are not adequate. I mean you might be able to train your arms, but you aren't going to be able to train legs, back, or even chest if they don't have dumbbells and benches. Warren Cuccurullo
I keep dumbbells in my trailer, and I work out between takes. Zach Roerig
Need a body-confidence boost? Pick up a pair of dumbbells and let your gaze linger on the outline of your biceps as you lift the weights. Denise Austin
My workout regimen at the moment is nonexistent. I wake up in the morning and brush my teeth. My toothbrush and deodorant are my only dumbbells. That's about it. Josh Bowman
Adjustable dumbbells use various designs that allow you to quickly add and reduce weight. Source: Internet
Any object can be used for weight training, but dumbbells, barbells, and other specialised equipment are normally used because they can be adjusted to specific weights and are easily gripped. Source: Internet