Product Details:
Spin.
 
Original flat construction drives sharp spin and good ball bite.
 
Flat Gut --- Mega Spin
It's a Japanese technology. The cross section is revolutionary new - Flat! It enables increased surface contact area in between ball and strings. Flat surface contact accelerating ball biting which results in overwhelming Mega-Spin whereas conventional string generating irregular point contact.
 
Synthetic (Flat Gut) Series --- Monofilament 
Gauge: 1.09-1.45 mm
Length: 40 ft / 12.2 m
Colour: White
Made in Japan
 
Category: Spin
 
Suitable Players: General Players
 
Tension: 50-60 lb
- Advanced 55-60 lb
- Intermediate 50-55 lb
- Beginner ~50 lb

Material: Nylon
 
Construction:
Core - Flat monofilament
Wrap - Flat multifibres

Rating:
- Durability 8
- Power 8
- Soft Feeling 7
- Spin 9
(out of 10 points)

Durability.
 
Polyester model with original flat construction performs high durability, sharp spin and high resilience.

Flat Gut --- Perfect Durability
It's a Japanese technology. The ball will spin 1.5 times more than traditional round string with same durability.
 
Synthetic (Flat Gut) Series --- Monofilament 
Gauge: 1.00-1.43 mm
Length: 40 ft / 12.2 m
Colour: White
Made in Japan
 
Category: Durability
 
Suitable Players: General Tournament Players
 
Tension: 45-55 lb
- Advanced 45-50 lb

Material: Polyester
 
Construction: Flat monofilament

Rating:
- Durability 8
- Power 9
- Soft Feeling 5
- Spin 9
(out of 10 points)

Soft feeling.
 
Original flat and Umishima construction performs good ball bite and sharp spin.
 
Synthetic (Flat Gut) Series --- Monofilament 
Gauge: 1.10-1.48 mm
Length: 40 ft / 12.2 m
Colour: Natural
Made in Japan
 
Suitable Players: General Tournament Players
 
Tension:
- Advanced 50-60 lb
- Intermediate 50-55 lb

Material: Sea & Island construction Nylon monofilament
 
Construction:
Core - Umishima Nylon monofilament
Wrap - Umishima multifibres
 
Rating:
- Durability 10
- Power 10
- Soft Feeling 8
- Spin 9
(out of 10 points)