About blades

Characteristics and shapes

What are the characteristics of artificial fibers?

What is the difference between Innerfiber and traditional structure?

The handle shape of shakehand blades has variations such as FL and ST. What are the differences?

The blade shape of Japanese penhold blades has variations such as S and R. What do they mean?

What is the reaction property?

What is the vibration property?

Please tell me about the gravity center of the blade.

Weight

Please tell me the weight of each blade.

Which is better, heavy or light blade?

Rubber replacement

Sticky residues remained on the racket surface after peeling the rubber. How to remove them?

Does a blade have a lifespan?

Others

What materials are used for blades other than the artificial fibers?

Can I get to know the date of manufacture and product details by serial number?

The blade is cracked/broken. What is the cause?