Dumbbells are a kind of free weights which can be used in pairs or separately. The present shape of dumbbells evolved in the early 17^th century. It is a handle with equal weights attached on the either side. There are mainly three kinds of dumbbells, i.e. adjustable dumbbells, fixed-weight dumbbells and selectorized dumbbells. You can get a rough idea about them from their names.

Adjustable dumbells are those whose weights can be increased or decreased as per the requirement. In this dumbbell, the weights are not fixed on the ends of the handle; rather they are secured there with the help of clips or nuts. You can remove one of the weights to reduce the load. A fixed weight dumbbell is that whose weights are fixed and cannot be increased or decreased. They are generally molded at the end of the handle. They can be made of metal as well as rigid plastic. Selectorized dumbbells are a type of adjustable dumbells. in this type of dumbbell, the weights are added or reduced mechanically rather than manually. You just have to select a number on the dial and turn or move a pin for selection. These are quite convenient to use.

Dumbbell designs have undergone many changes in the recent years. They are an important part of any workout and will always remain so. There are many firms making traditional as well as  adjustable dumbbells. You must choose one with care. First of all you should determine the use. If you are buying for your own personal use then you should go for the ones which are easy to handle and can easily be stored, but if you are buying it for the gym then you should buy ones which can be used by a wider range of people. There are cheaper Chinese products available in the market but you must buy a heavy duty one, since you don’t buy them every day.

Adjustable dumbells can have a wide range of weights. The classic ones had weights from 5-45pounds which could be adjusted as per the need. The weights are increased by incrementing 5 lbs with every addition. They are equivalent to 18 separate dumbbells. There is also an option of adding even more weight if 45 lbs is not enough for you.

So, if you are serious about body building and want to invest in dumbbells go for adjustable dumbells. They are not very attractive to look at but are very comfortable to use and allow you the flexibility of increasing or decreasing the load.

There is a variety of these dumbbells available in the market and all of them are priced differently. These dumbbells are better option instead of buying a rack full of dumbbells of different weights. You simply buy one pair and adjust the weights according to the strength that you build up with time and practice.

These dumbbells have become an integral part of a good fitness plan. These can enhance your fitness program and these can be used at any level of your workout. You can start with lower levels and gradually increase the levels so that your body can adapt to it with ease. When you buy one of these sets then make sure that you know the maximum and minimum weight that you want. These dumbbells have different types of grips. You may prefer straight or ergonomic grip. There is no special benefit of any one of these; it is simply a matter of choice.

There are two popular styles of these adjustable dumbells, the block and the round. The only advantage of the block shape is that they do not roll and more stable. This makes them safer and easier to handle. You can do large number of exercises with these dumbbells and are far better than the traditional weight machines. You don’t need to change machines to get different levels of workout. You can simply increase or decrease the weight as per your requirement.

You may find these dumbbells a little costlier than the traditional ones but investing in this one pair can help you in saving money on a gym membership or buying number of other equipments. So you buy just one pair of these dumbbells and exercise at your home without any hassles. There are many qualities available in these dumbbells and you can buy the one that falls in your budget.

You can take a look at the different types of these adjustable dumbbells online. You can by them online if you want because there are far better deals available if you shop online. Many online shopping sites offer discounted deals but make sure you shop from some of the reliable ones. As this is a product that has to be of good quality else it will not solve any purpose. Even if you have to pay a little more for better quality then you must not be hesitant in doing so because these will be long term investment for your health. Alternatively, you can visit a store nearby, understand and see the way these dumbbells work and then make a purchase so that you are fully convinced.