1 / 4Guyker ATW-7639 Acoustic Guitar Bone Saddle, 2-Piece
ATW-7639: Guyker Acoustic Guitar Bone Lower String Nut is a two-piece bone replacement set listed for six-string acoustic guitars. Its pre-cut string grooves may simplify positioning, but fit depends on matching the existing saddle dimensions and shape.
At a glance
- Listed for six-string acoustic guitars.
- Made from cattle bone, according to the product description.
- Pre-cut string slots are claimed to reduce installation effort.
- The listing describes a brighter tone with improved resonance and sustain, but does not provide independent performance evidence.
Often bought together
Pros and cons
Pros
- Two pieces are listed, providing a spare or replacement for a second guitar.
- Pre-cut string grooves can reduce the work needed to establish string positions.
Technical specifications
9 specifications| Brand | guyker |
|---|---|
| Model | Acoustic Guitar Bone Lower String Nut |
| Instrument | Guitar |
| Intended guitar | For 6 string acoustic guitar. |
| Material | bone |
|---|---|
| Material description | cattle bone |
| Color | White |
| String grooves | Pre-cut string slots |
| Included components | 2 pieces lower string bone nuts |
|---|
What to know before buying
Listing details to confirm
The title describes a bridge saddle, while the model and package details call the pieces lower string nuts. The listed dimension string is ATW-7639, white 2 piece, rather than an unambiguous set of measurements. Confirm the part type, width, thickness, height, and shape against your original before ordering. The product description says dimensions may deviate by 1-2mm due to manual measurement.
What’s in the box
Included- 2 lower string bone nuts
Who is it for?
A good fit for
- Acoustic guitar owners seeking a two-piece bone replacement and able to match the part to their instrument.
- Buyers who prefer pre-cut string grooves over an unslotted blank.
Less suited to
- Anyone who needs a confirmed fit without measuring the original part.
- Players seeking a replacement for an electric guitar, classical guitar, or another instrument type not identified for this item.

Customer reviews on Amazon
- 5 stars
100% 100% - 4 stars
0% 0% - 3 stars
0% 0% - 2 stars
0% 0% - 1 star
0% 0%
Only aggregate rating information is supplied, with a very small number of ratings and all reported ratings in the five-star category. That is limited feedback and does not establish fit, installation ease, or tone performance for a particular guitar.
Frequently asked questions
How many pieces are included?
The listing states that the package includes two lower string bone nuts.
Which guitars is this part intended for?
The feature text identifies six-string acoustic guitars. The listing does not confirm fit for a particular guitar model.
Are the grooves already cut?
Yes. The listing says the pieces have pre-cut string slots.
What size is the part?
The title gives ATW-7639, but the listing does not clearly state separate dimensions. Measure your original part and confirm the sizing before purchase.

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