COLOR: BLACK. The supplied print is black; render colors are illustrative. Frame a nominal 10 × 10 cm area for counting knitted or crocheted stitches and rows. An open view with nominal 5 mm divisions and a clear 10 cm label. DIMENSIONS 142 × 142 × 3.2 mm; central window nominally 100 × 100 mm, with 0.5 mm corner rounds. CONTENTS 1 printed pieces: 1 × swatch-window. Material: PLA. SUPPLY SEPARATELY A swatch and a trusted ruler for checking the print. USE AND ASSEMBLY Lay a finished swatch flat without stretching. Set the window over an interior region and count stitches across and rows up, following the pattern guidance for before/after blocking. Check the printed opening against a trusted ruler before using it for garment sizing; these printed marks are not a calibrated measuring instrument. Images are renders of the actual CAD. Geometry and reference slicing checked digitally; physical fit, finish and service life have not been established by those checks. Printed to order. Shipping and taxes are calculated at checkout. Design: João Lutz / JoaoLutzFilm, with AI assistance.