MudTools / Ribs & scrapers

MudTools Shape 1 Very Soft Kidney Rib

The R1 variant pairs the classic Shape 1 kidney outline with an explicitly Very Soft polymer grade.

Red kidney-shaped rib with a central round hole and embossed Mudtools lettering.
Listing image of the red Shape1 rib. Very Soft is the selected listing designation rather than a property measured from this photo.

The selected specification

Read units and scope together

Source firmness grade

Very Soft

Fit & limits

For a documented soft-flex profile; broad material and performance claims do not establish universal suitability.

Nominal dimensions alone do not establish wheel, pin, insert or container fit.

A CLOSER LOOK

Read the details.

MudTools' selected R1 is a Shape 1 polymer rib with the classic kidney outline. The title, selected variant and a dedicated product statement identify the firmness as Very Soft. This is a documented specification for this exact version rather than a conclusion based only on its red appearance. The profile is distinct from the smaller Shape 0 and the broader Shape 5, even though those products can also be offered in soft grades.

Compare both the kidney contour and the relative flex with the forms you want to assess. A familiar outline does not mean every version in the family will feel the same, and a shared firmness label does not mean different shapes provide the same contact area. Retain the R1 product identity when organizing a mixed collection of ribs. If you are replacing a known tool, verify the shape number and grade together instead of choosing whichever red rib appears in a search result.

Very Soft is the maker's descriptive grade, not a measured hardness value or a guarantee about all clay conditions. The source mentions several clay bodies and stages, but no exact combination or result is independently tested here. Claims about non-drag performance, burr resistance and long life are not treated as guarantees. The listing identifies this selected rib, not the complete color-coded range, and no technique sequence or universal finishing result is provided.

How the bench list works

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