a machine (an exercise machine)
weights
a treadmill
a stationary bicycle (an exercise bike)
a cardio stepper
an elliptical machine
a dumbell
a barbell
a bar
plates
a collar
a bench
an inclined bench
a kettlebell
a shaker
a chin-up bar (a pull-up bar)
dip bars
a rope
a cable machine
a Smith machine
a preacher curl bench
a jump rope
a yoga mat
lifting straps
knee wraps
a weight lifting belt
gloves
a punching bag