An Ateco 9-piece plain oval cutter set (5254). Graduated stainless steel. Official page: cutters range from 1.1" to 3.4" and are 1.25" high. Made in China. Specs from Ateco's 9 Piece Plain Oval Cutter Set page (the catalog table prints height 1.1"; copy follows the live product page).

Nine nested stainless ovals. Same family as the square set.