Synthethic whale baleen/boning diff. widths

You don't need boning caps, you can cut the boning with sturdy scissors and file them round to keep from getting sharp edges.

Plastic Boning for Sewing, Corset Supplies

Different types of Plastic corset boning and what it is used for

Different types of Plastic corset boning and what it is used for

Artificial Whalebone For Stays, 1/4 (6.35 mm) wide, by the yard., Made in Germany, Artificial whalebone works really well for the boning in

1/4 Synthetic Whalebone For Stays

Boning for Dressmaking: Types, Uses and Sewing Technique

Boning in corsets: Everything you need to know – Miss Leather Online

10 Types Of Corset Boning For Historical Corsetry - Sew Historically

Bonings for corsetry, which one should you choose? - Secret Times

Synthetic Whalebone - 6 mm X 1.5 mm

Exceptions to Corset Rules – Lucy's Corsetry

Plastic Boning for Sewing, Corset Supplies

Boning in corsets: Everything you need to know – Miss Leather Online

Synthetic Whalebone (German Boning) -9 sizes

Plastic whalebone 7mm - Roda Traden AB