Known for being a control-oriented rubber
Flextra is a rubber with high control performance which allows you to create stable balls.
| Name | Flextra |
| Release date | November 21, 1991 |
| Type | Pimples-in |
| Speed | 29 |
| Spin | 10 |
| Arc | 15 |
| Sponge hardness | 32 |
| Color | Red, Black |
| Sponge thickness | 2.1, 1.9, 1.7, 1.5, 1.3 |
| Country of origin | Japan |
| ※ Please use “Free Chack II” when applying to a blade. ※ As this rubber has a delicate surface, it will be easily damaged. In order to protect it, please cover it with protect sheet after playing. ※ If you feel any abnormality on your skin, etc. during wear, please stop using it immediately. | |