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March 11, 2021
Home dumbbell purchase
1. Dumbbell types
There are actually many dumbbells on the market, but they are nothing more than two categories, one is a fixed weight dumbbell and the other is an adjustable weight dumbbell. A fixed dumbbell is the same as its literal meaning. The weight of a dumbbell is fixed, such as 2.5, 5, 7.5, 10, 12.5kg·· and so on. Adjustable dumbbells can change the overall weight of the dumbbells according to the number of dumbbell pieces. Most of them are detachable weights of 30KG. There is also a quick adjustment of dumbbells which is very convenient.
1. Adjustable dumbbells
（1）. Rubber-coated adjustable dumbbells. This is the lowest dumbbell. The rubber-coated dumbbells may even contain cement or stone powder. Of course, the currently popular iron-clad. This is also the most easily damaged, and multiple changes and beatings will make the outer layer of glue extremely vulnerable. The life span is questionable.
（2）. Electroplating adjustable dumbbells are currently the most popular one of certain treasures, the first misunderstanding choice for Xiaobai users, beautiful appearance and high-end appearance. But after a few times it will lose shape. This is really to think twice before making a choice.
（3）. The spray-painted adjustable dumbbell is the most common solution at present. This kind of spray paint is better than the electroplated one, and the outer layer material is more durable.
Personal analysis: I do not recommend adjustable dumbbells.
Because it takes too long to change the film during the break time of each group of actions during use, the exercise state cannot be maintained.
Another point is that it is more susceptible to damage.
2. fixed weight dumbbells
(1). Plastic dipping dumbbell: This is one of my favorite dumbbells. The processing technology is a whole cast iron block + outer layer dipping. I like it because it feels good. There are two classifications: smooth surface and pitted surface. The characteristic of the dipped dumbbell is that the dumbbell handle is relatively short and the grip is better.
(2). Electroplating dumbbell
The process of electroplating always faces the problem that the electroplated layer will fall off.
The fixed electroplated dumbbell must not be dropped.
(3). Rubber coated dumbbells
Rubber-coated dumbbells are the most difficult to choose, because the price is very different, because there are many rubber materials, and inferior rubber materials will produce a bad smell.
(4). PU dumbbell (polyurethane dumbbell)
Polyurethane (English: Polyurethane, generally abbreviated as PU) refers to a type of polymer containing urethane characteristic units in the main chain. This polymer material is widely used in adhesives, coatings, low-speed tires, gaskets, car mats and other industrial fields. In the field of daily life, polyurethane is used to make various foams and plastic sponges. Polyurethane is also used to make condoms-such as Okamoto 001 and medical equipment. Another characteristic of polyurethane is its very low thermal conductivity.
This is the highest-end dumbbell currently on the market, with high biological safety and odorless.
You can breathe comfortably even when sweating.
Some PU dumbbells are also very beautiful
For example, this Captain America PU dumbbell