The ProRim Collection
ProRim is a rim-support tool designed to help potters keep their forms perfectly round from the moment a piece leaves the wheel through early drying.
As clay is lifted, moved, and begins to dry, rims naturally shift and lose their circular shape. ProRim is gently inserted into the rim of a bowl, mug, cup, or small vessel to support and preserve roundness, or lightly twisted to re-establish a true circle after handling. Designed and manufactured by Pearl & Fern, ProRim helps protect your form, improve consistency, and reduce distortion — giving you clean, professional results with less stress at a critical stage of the making process..
We believe in what we make. Every Pearl & Fern–manufactured pottery supply tool comes with a 2-year guarantee. If it breaks under normal studio use, we’ll make it right with a replacement - no fuss, no stress.
The ProRim Collection — Bowl, Mug & Mini
The ProRim Collection is a complete rim-support system designed to help potters maintain perfectly round forms from the wheel through early drying.
Clay naturally shifts as it’s lifted, moved, and dries — even the most carefully thrown pieces can lose their circular shape. The ProRim Collection gives you the right size tool for every form, allowing you to support, correct, and preserve roundness without distorting your work.
Each ProRim can be inserted immediately after throwing to keep rims true as pieces come off the wheel, or used after moving to gently re-establish a perfect circle with a light twist. Whether you’re working on bowls, mugs, cups, or smaller detailed forms, this collection ensures consistency, control, and confidence at every stage.
The Collection Includes
ProRim: Bowl — for bowls and wide, open forms
ProRim: Mug — for mugs, cups, and cylindrical vessels
ProRim: Mini — for small pieces, narrow openings, and precision work
Designed and manufactured by Pearl & Fern, each ProRim in the collection is made for durability and daily studio use. Every piece is backed by our 2-year warranty — if it breaks or warps under normal use, we’ll replace it quickly so you can keep creating.
The ProRim Collection is an essential studio upgrade for potters who care about clean lines, consistent forms, and professional results.
The ProRim — Bowl
The ProRim: Bowl is designed to help potters maintain perfectly round rims on bowls and open forms as they come off the wheel and through the drying process.
Clay naturally wants to shift, oval, and relax as it moves and dries. The ProRim Bowl can be gently inserted into your freshly thrown piece to support the rim and preserve its circular shape. It can also be used after moving the piece — simply insert and lightly twist to re-establish roundness without distortion.
Ideal for bowls, wide forms, and open vessels, this ProRim gives you confidence that your rim will stay true from wheel to leather hard.
Designed and manufactured by Pearl & Fern, the ProRim Bowl comes with a 2-year warranty. If it ever breaks or warps under normal use, we’ll replace it for you — no stress, no fuss.
Weight & Dimensions
Weight: 83g
Height: 3.5 in
Diameter Top: 7 in
Diameter Bottom: 4 in
(Dimensions are approximate)
The ProRim — Mini
The ProRim: Mini is a smaller-format ProRim designed for delicate pieces, narrow openings, and compact forms where precision matters most.
Perfect for small cups, minis, jars, lids, and tight rims, the Mini allows you to support and correct roundness without overworking the clay. Use it right off the wheel or during early drying to gently guide the rim back into a perfect circle.
This size is ideal for detail-focused potters who want control without bulk, especially when working on smaller or more refined pieces.
Like all ProRims, the Mini is designed and manufactured by Pearl & Fern and includes a 2-year warranty. If it breaks or warps, we’ll replace it as quickly as possible.
Weight & Dimensions
Weight: 20g
Height: 1.5 in
Diameter Top: 3 in
Diameter Bottom: 1.5 in
(Dimensions are approximate)
The ProRim — Mug
The ProRim: Mug is designed specifically for cylindrical forms such as mugs, cups, and tumblers, where even slight distortion can affect both function and fit.
After throwing, the ProRim Mug can be inserted to ensure your rim stays perfectly circular as the piece is lifted off the wheel. It’s also incredibly effective during early drying — insert and gently adjust to correct subtle shifts before they become permanent.
Whether you’re working in production or focusing on refined one-off pieces, the ProRim Mug helps maintain clean lines, consistent diameter, and professional results.
Designed and manufactured by Pearl & Fern, the ProRim Mug is backed by our 2-year warranty. If it breaks or warps, we’ll replace it promptly so you can keep working without interruption.
Weight & Dimensions
Weight: 39g
Height: 2.5 in
Diameter Top: 5 in
Diameter Bottom: 3 in
(Dimensions are approximate)