Introduction
The DOSHISHA Gorilla Grip Electric Hand Care Massager GRT-2501GY is designed to provide powerful compression for hand care. This device features a 5-minute automatic shut-off timer and offers three adjustable intensity levels (Strong, Medium, Weak) for a personalized experience. It is designed for easy wear and is suitable for use on both the left and right hands.
Package Contents
Please check that all the following items are included in your package:
- Gorilla Grip parts x 2
- Dedicated AC adapter
- Instruction Manual
- Warranty Card
Safety Information
Before using this product, please read all safety instructions carefully to ensure safe and proper operation. Keep this manual for future reference.
- Do not use if you have any pre-existing hand conditions, injuries, or medical implants without consulting a doctor.
- Keep out of reach of children.
- Do not disassemble or modify the device.
- Use only the provided AC adapter.
- Avoid using the device in wet environments.
Setup
- Attach the Gorilla Grip Parts:
Locate the two 'Gorilla Grip parts' and the hook-and-loop fasteners on the inner surface of the massager. Attach the grip parts to your preferred locations on the fasteners. You can adjust their position to target specific areas of your hand.

Figure 1: The two Gorilla Grip parts.

Figure 2: Attaching the Gorilla Grip parts to the inner hook-and-loop fasteners.
- Insert Your Hand:
Open the massager and insert your hand, ensuring it is comfortably positioned. The internal tag indicates the correct hand placement for optimal use.

Figure 3: Correct hand placement inside the massager.

Figure 4: Close-up of the internal hand placement tag.
- Connect Power:
Connect the dedicated AC adapter to the power port on the massager and then plug it into a power outlet.
Operating Instructions
- Power On/Off and Intensity Adjustment:
Press the power button located on the top of the device to turn it on. Each subsequent press of the button will cycle through the three intensity levels: Weak, Medium, and Strong. Pressing it again after Strong will turn the device off.

Figure 5: Power button and intensity level indicators.
- Automatic Shut-off:
The massager is equipped with a 5-minute automatic shut-off timer. After approximately 5 minutes of operation, the device will automatically turn off to prevent overuse.
- Left and Right Hand Use:
The device is designed for use on both left and right hands. Simply adjust the orientation of the massager and the internal grip parts as needed.

Figure 6: Diagrams for left and right hand usage.
Maintenance
- Always unplug the device from the power outlet before cleaning.
- Wipe the exterior of the massager with a soft, dry cloth.
- Do not use abrasive cleaners or immerse the device in water.
- Store the massager in a cool, dry place away from direct sunlight.
Troubleshooting
If you encounter any issues with your DOSHISHA Gorilla Grip Electric Hand Care Massager, please refer to the following common solutions:
- Device does not turn on: Ensure the AC adapter is securely connected to both the device and a working power outlet.
- Weak or no compression: Check that the Gorilla Grip parts are correctly attached and positioned. Ensure your hand is properly inserted and the massager is closed securely.
- For further assistance, please consult the included warranty card for contact information or visit the official DOSHISHA website.
Specifications
| Model Number | GRT-2501GY |
| Brand | DOSHISHA |
| Power Source | AC Corded |
| Air Pressure | Max approx. 60kPa |
| Cord Length | Approx. 2m |
| Material | Polyester |
| Color | Gray |
| Product Weight | 300 grams |
| Package Weight | 0.34 kilograms |
| Product Dimensions | 17 cm (Length) x 21.5 cm (Width) x 4 cm (Height) |
| Package Dimensions | 28.9 x 20.4 x 5.9 cm |
Warranty and Support
This product comes with a warranty. Please refer to the included warranty card for details regarding the warranty period, terms, and conditions. For customer support, technical assistance, or inquiries, please contact DOSHISHA customer service as indicated on your warranty card or visit the official DOSHISHA website.





