Invisible Sew-In Magnetic Snaps by Studio Kat Designs Hardware for Bag and Purse Making - Set of 1 Magnetic Snaps for Bag and Purse Making. £5.00 Quantity: at £5.00 each Add To Basket A magnet set that is easy to sew-in with your sewing machine in between the layers of your fabric so that it's invisible. No special needle or attachment is required. Size 3/4in. One set of snaps per package. Studio Kat Designs.