This bag was designed for laser cutting, perfect for when you are shopping at the grocery store. The leather strap has a line 20 snap that can been undone and then strap can be wrapped around the handle of a grocery cart. You will be able to look away and know your bag is safely secured around the cart handle and no one can just pick it up and take it. You will need the follow items to complete this laser cut design: Line 20 Snaps 1mm Waxed Thread for Leather