
Retail price was recorded at collection time and may differ at checkout.
Coupang delivers inside Korea only, so we link to the brand’s own page instead. The price above is the Korean retail price.
SK7 Classic
A reissue of the classic 7-ply all-wood blade proven at the highest level, reworked in a new form. Suits dynamic yet delicate play.
💡 Who this suits
Good reaction speed, well suited to attacking play, with a moderately crisp feel that works across a range of styles.
About this product
Seven-ply at 6.8mm like Korbel SK7, with identical reaction and vibration (11.1 / 9.3), at ₩75,000 — ₩7,000 less.
There is no performance difference to state between them. What separates them is handle shape and blade weight, and that only reveals itself in the hand.
The SK7 name denotes the seven-ply family. All the seven-ply blades here — Korbel, Korbel SK7, SK7 Classic, Timo Boll Spirit — cluster around reaction 11-plus and vibration near 10.
₩75,000 is among the cheapest Butterfly blades on this site. If you want to attack without carbon on a fixed budget, start here and put the money into rubber.
What the numbers say
7-ply 6.8mm. Its reaction of 7.4 ranks 27 of 46 blades, mid-range. It is on the more flexible side. Based on the manufacturer’s published figures.
This paragraph is not a copied review — it is generated from the figures and rankings collected on this site, and changes when they do.
Where this blade sits
Reaction and vibration figures Butterfly publishes for 46 of its blades (official 1–15 scale). Further right means more reaction; higher means more vibration. Neither axis is "better" — they describe character. Other brands use different scales and are not mixed in.
Manufacturer figures
Butterfly official, 1-15Each brand uses its own scale, so these numbers cannot be compared directly across brands
Not shown
Not published — Official Spin (the brand does not publish this figure)
Weight 90g
Full specifications
| Playing style | All-round |
| Grip type | Shakehand |
| Construction | 7-ply |
| Carbon position | All-wood |
| Plies | 7 |
| Blade size | 157 × 150mm |
| Thickness | 6.8 mm |
| Weight | 90 g |
| Handle types | FL, ST |
| Made in | Japan |
Rubbers that pair with this blade
Real player setups and level-based recommendations come first.

Jekyll & Hyde C55.0
Matched at a similar mid-range grade

Spin Chal
Matched at a similar mid-range grade
For beginnersInception
Matched at a similar mid-range grade

Omega VII Asia
Matched at a similar mid-range grade