Color: dark blue

so there is no white border around the pictogram (unless you specifically want this when ordering - then just write it as a note to your order that there should be X cm white border around the clothes recycling sign)

If you intend to fasten the metal plate onto a thin wooden wall

that is also possible

til 300 gram

Sy-i-magnet knap rund Ø26 mm., gul Tier1 Color: dark blueMagnets designed for sewing into clothing, curtains, and similar items feature buttonholes for straightforward attachment. One unit contains two parts: one north and one south. Ordering 1 unit gives you 1 set, and ordering 10 units provides 10 sets. Generally, 5 button sets are adequate for a standard jacket or shirt, though preferences vary. This model is yellow. A yellow magnetic button would be a brilliant addition to a dress, bag, or backpack,