Abstract: The invention provides a self-adhesive tie for a bag, the tie comprising a folded length of tie material, an adhesive layer for adhering the folded length to a bag, and a backing of release material covering the adhesive layer. The invention also provides a method of making a succession of self-adhesive ties for bags, the method comprising the steps of: (a) disposing a succession of folded lengths of tie material on a web, the web including a backing of release material and each folded length being adhered directly or indirectly to the backing of release material; and (b) cutting the folded lengths of tie material and the web to form a succession of ties for bags.