These are heat seal patches. It could be stitched on to the garment and bags or it could be easier use iron to press on the garment or fabric. The best way to do heat press is do it from back side of the fabric.
Measurements: 3.5" length. 2 1/4" width.
Available colors: Black - 23pcs Pink ---22pcs, Blue ---17pcs, Gold -- 20pcs Silver - 18pcs