Detail 01
4/4 size
Cut for a full-size upright. Most school and jazz basses are 3/4, so verify before ordering.
Product detailSKU #1274115036272
ThomastikSuperflexible 4/4 Size Double Bass Strings 4/4 E String
Independent shopping perspective
The Korena take
A single E string for a 4/4 double bass. Buy it to replace one string, not to restring the whole instrument.
Strong match
Who this is for
- Replacing a worn or broken E on a full-size upright bass
- Orchestra and school programs stocking spares by individual string
- Keeping one gigging bass playable without a full set purchase
Consider the trade-offs
When to look elsewhere
- Bass guitar players — this is for upright, not electric bass
- Anyone needing all four strings matched and evenly worn
- 3/4 size basses, which are the more common school and jazz size
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
E string only
The lowest string, sold on its own. No A, D, or G included.
Detail 03
Double bass, not bass guitar
Made for a bowed upright with a much longer string length. It will not fit an electric bass.
Detail 04
Single string at this price
A full set costs several times this, which is why singles are worth stocking for the string that goes first.
Detail 05
Thomastik Superflexible
A steel-core orchestral and pizzicato line commonly fitted to school and rental basses.
Final check
Know before you order
- 01Measure your bass — 3/4 is far more common than 4/4
- 02Bridge and soundpost can shift if all strings come off at once
- 03Steel bass strings settle slowly; expect days of retuning
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Does this work on an electric bass guitar?
No. This is for an upright double bass. The string length and ball end are completely different from a bass guitar string.
02Is my bass 3/4 or 4/4?
Most school, jazz, and rental basses are 3/4. Measure the string length from nut to bridge and compare with the maker's spec, or ask a luthier.
03Can I replace just the E?
Yes, and it is common. Change one string at a time so the bridge and soundpost stay under tension.
04Will it match my other Superflexible strings?
Yes, if the rest of your set is the same line and size. Mixing lines gives uneven feel and volume across strings.
