It's Sew Emma Cross Stitch Finishing Dots 1.5" 144/Pkg-

Cross Stitch Finishing Dots come in 2 sizes and are an all-around great notion for mounting needlework. This double-sided, acid-free circle tape adheres to art boards, foam core and more without leaving residue on your fabrics and without needing pins, staples, glue or clips. Get a professional finish on every project every time, the perfect hassle- and worry-free way to show off your work. This package contains 144 adhesive dots. Size 1.5 inch round. Made in the USA.