Specifications

Adjustable rubber dumbbell set
size: from 2.5kg to 50kg at the increase base on 2.5kg
packing :carton 

1  Dumbbell message:

A weightlifting and fitness training aids.  It has Fixed and adjustable dumbbell set

1). fixed-weight dumbbells. With cast iron , the middle is the iron bar , solid at both ends of the ball, because practice is no sound, called dumbbells. Light-weight dumbbells are 6 , 8  ,12 ,16 pounds (1 pound equal to 0.4536 kg) and so on. The weight of a heavy dumbbell 10,15,20,25,30 kg and so on.

2). adjustable dumbbells. Similar narrowing of the bar, put on weight in a short iron bar ends, ranging from circular iron plates, about 40 to 45 cm, weight lifting or fitness exercises can increase or decrease in weight. Often do dumbbell exercises can enhance muscle strength of various parts of the body.

2  Dumbbell   Purpose:

Its purpose is for strength training, muscle compound action training. Due to motor paralysis, pain, inactivity as a result of long-term patients with low muscle strength, holding a dumbbell, dumbbell weight can be used for anti-resistance to active movement, muscle strength training. Training, dumbbells can be a single muscle; such as increased weight, you need more muscle coordination, but also training as a compound muscle action