Fidget spinner
The limited edition version of 'Caviar Spinner Full Gold' is soon set to go on sale and is believed to be the most expensive of its kind in the world -Representational image Robert Couse-Baker / Flickr

The world's most expensive fidget spinner is about to go on sale for 999,000 Russian rubles (£13,000). The exclusive Caviar Spinner Full Gold will be launched by the Russian luxury jewellery firm Caviar.

The limited edition version is believed to be the most expensive of its kind in the world. These gadgets are gold plated and will help "de-stress clients" Caviar claims.

Caviar also has options for people on a slightly lower budget. Its Caviar Spinner Diamonds, which is made out of diamonds, sells at £1,290.

One can even opt for a spinner adorned with the Russian flag on it for £195.

Another option is the skull-decorated Caviar Spinner Carbon that is made out of zinc and coated with physical vapour deposition (PVD). The sellers say that the zinc will "influence testosterone" in men.

Besides, the firm sells Vladimir Putin-themed iPhones, as well as special-edition Donald Trump iPhone 7 cases. They have even made special watches to celebrate Putin's birthday.

Caviar has pledged to donate some of the profits from the sale to charity.

What is a fidget spinner

A fidget spinner is a flat toy with lobes similar to the blades of a fan that can spin along its axis. Users can rotate the device by placing it between their fingers and the motion provides a pleasant sensory experience.

These spinners come in various shapes, sizes and colours. The cost of the spinner depends on the material it is made of, with the plastic ones coming really cheap and affordable by all. They have become so popular that someone even modded the stress-relieving toys into Rockstar Games' open world classic Grand Theft Auto 5. A video by jedijosh920 shows the mod created by Quechus13, and is available through his Patreon page.

The fidget spinner craze

Everyone fidgets in some form or the other — touching your hair, biting your nails, playing with your clothing or clicking your pen are all different forms of fidgeting. As such, it is easy to see why the fidget spinner has become 2017's biggest toy craze among children as well as adults across the world.

Fidgeting has been found to be beneficial because the act helps the brain from being distracted by random thoughts. Fidgeting also acts as an extension of the thinking-expressing process, besides providing a predictability that may be missing in real life.

Controversies surrounding the fidget spinner

While the spinner is definitely a popular toy, claims of it helping people with attention deficit hyperactivity disorder, anxiety and autism to concentrate better have been called out by the medical fraternity.

A recent research by John Hopkins University clearly revealed that "These were never made as a medical aid or medical device, and these claims come from smart marketing on the internet."

Many schools and institutes have criticised the fidget spinner as a distraction. This is because the pleasant sensory experience associated with spinning the little device can lead students to keep at it for hours.

One Greater Manchester school sent a text message to parents that the gadgets "are a distraction to learning and can be dangerous". The school threatened to confiscate any fidget spinner brought to school.

However, a mother who had bought a fidget spinner for her 10-year-old son with ASD/SPD was not very happy with the ban, Birmingham Mail reported.

"Now that they're being banned in schools it means he will have to lose an aid that is extremely beneficial to him. It's unfair if a child with special needs already has them and is now not allowed because others have them purely for enjoyment," she was reported as saying.

Fidget spinners have caused controversy in air too. The US Transportation Security Administration (TSA) recently confiscated one particular spinner that raised a few safety eyebrows.

The "Satan's fidget spinner" was nabbed at the Savannah/Hilton Head International Airport in the US state of Georgia on 16 June. The satanic spinner resembles a Japanese shuriken weapon, which many refer to as ninja or throwing stars.

Spinners could even prove to be a fire hazard as the incident of a bluetooth-enabled version of the toy overheating and exploding while being charged at a family home in the US indicated.