Open Up! Products and Services
Smartphone ring +
Cap opener
Nippon Closures Co., Ltd.
A cap opener with a smartphone ring function that allows even those with hand or finger problems to open PET bottle caps with minimal effort.
● Designed to allow the cap to be opened with minimal effort.
● 3-in-1 device: smartphone ring, smartphone stand, and bottle cap opener.
● An inclusive design that can be used discreetly.
● Shape compatible with the caps of over 90% of PET bottle beverages on the market.
This product utilizes a smartphone as a handle to enlarge it, and by applying the principle of leverage, it is designed to make it easier to open PET bottle caps with minimal effort.
This product helps alleviate the burden on people who regularly experience difficulty opening caps, including the elderly, those with hand or finger disabilities, and even those with long fingernails.
Not only does it serve as a phone ring to prevent your smartphone from falling, but it can also be used as a cap opener when needed.
Furthermore, it can be attached to the cap of a PET bottle to be used as a smartphone stand, making it convenient for various everyday situations such as watching videos.
In a monitor survey (130 men and women aged 20-79), 90% rated the product highly for its function as a smartphone stand, and its ease of opening as well as its practicality for everyday use were also well-received.
Some people who have difficulty opening bottle caps may feel a psychological burden because they don't want others to notice that they are using assistive devices.
This product attaches to your smartphone, which you carry with you at all times, minimizing its appearance as an assistive device and achieving a design that is naturally easy to use in everyday life.
In addition to being readily available when needed and less likely to be misplaced or forgotten, its key features include the ability to be used discreetly without attracting attention.
Leveraging our expertise as a cap manufacturer, we have created a shape that is compatible with the caps of over 90% of PET bottle beverages on the market *.
*This refers to PET bottle caps with a 28mm screw diameter (for both carbonated and non-carbonated drinks) that are commonly available in Japan.
"Things I couldn't do before, I can do again."
"Opening the cap with bare hands can be painful, but using this product alleviates the pain."
"It can be attached to a smartphone, so you can use it discreetly without worrying about attracting attention."
"Since it can be attached to something I always carry with me, I no longer need to search for an opener or worry about losing it."
"I used to avoid buying PET bottle products because the caps were so tight, but having this opener has made me want to buy them again."
*Selected from feedback received through direct interviews with users.
The cap is very easy to open and close, making this a very user-friendly product. Furthermore, the fact that they incorporated diverse feedback from many people during the development stage demonstrates a wonderful understanding of the product's versatility. Considering that there are many people overseas who are facing similar difficulties, I hope they will consider more proactive overseas expansion.
- To solve the challenge of difficult PET bottle opening, Nippon Closures develops a 'smartphone ring + cap opener' that allows you to open the cap with light force (Press Release dated June 25, 2024)
- Nippon Closures "Smartphone Ring + Cap Opener" Wins the "Social Products Award" at the Social Products Awards 2025 - Highly praised for combining ease of use and practicality - (Press release dated March 27, 2025)
- Product information page (Nippon Closures Co., Ltd. website)