Flabby, unfirm hands are quite an ugly sight:

Flabby, unfirm hands are quite an ugly sight. Here’s a simple program for creating tighter arms in the comfort of your home. The muscles being focused on are the triceps (back of the arm) and the biceps (front of the arm just below the front of the shoulder).   You’ll be performing a tri-set, which means three exercises in a row without any rest. Select a weight that’s challenging, focus on impeccable form and concentrate on the muscle you’re working. The triceps are a larger muscle than the biceps, so there are two triceps exercises and one biceps exercise. 

Tricep dips
* Take two benches or chairs, sit on one.
* Place palms on the bench with fingers wrapped around the edge.
*  Beginners should start with feet on the floor and knees at a 90-degree angle. As you progress, move your feet out further until your legs are straight with a slight bend in the knees. Then use another chair/bench and place both feet on the other bench.
*  Slide your upper body off the bench with your elbows nearly but not completely locked.
*  Lower your upper body slowly toward the floor until your elbows are bent slightly more than 90 degrees.
*  Contracting your triceps muscles, extend your elbows returning to the starting position stopping just short of the elbows fully extending.
*  Inhale while lowering your body.
*  Exhale while returning to the starting position.
Perform 12-15 repetitions and immediately go to the next exercise.

Dumbbell Double Biceps Curl

* Stand straight with a bit of distance between your feet. Your back too should be straight.
*  Hold a dumbbell in each hand with your arms at each side and palms facing forward. Contracting the biceps muscles, raise the weights toward your shoulders stopping just short of the weights touching the shoulders.
*  Slowly return to the starting position.
*  Exhale while lifting the weights.
*  Inhale while returning to the starting position.
*  Your upper arms should remain stationary throughout the exercise.
Perform 12-15 repetitions and immediately go to the next exercise.

The Head Triceps Extension

*  Stand with a dumbbell in your right hand. You can hold your left elbow if you need support. 
* Press the weight over your head until your right arm is almost straight with a slight bend in the elbow at the top position.
*  Do not allow the weight to touch your head or neck area.
*  Slowly bend your elbow, lowering the weight until your arm forms a 90-degree angle behind your head stopping before the weight touches your back.
*  Contracting the triceps muscles, slowly return to the starting position.
*  Exhale while returning to the starting position.
*  Inhale while lowering the weight.
*  After completing the set on the right side, repeat on the left side.
*  This exercise is not to be performed with very heavy dumbbells. The technique is more important than the weight.
You can also perform this exercise while seated on a bench.
 
All three exercises are considered one cycle. Beginners should perform one cycle on three alternate days of the week. Intermediates should perform two cycles on alternate days of the week and pros — three cycles. Wait one minute between cycles before repeating.  To get best results this specialty arm workout should be incorporated into your exercise schedule which includes weight training and cardiovascular exercises.