Clever Chevron Onlay Mold by Marvelous Molds.The Clever Chevron Silicone Onlay Mold is the perfect tool for creating raised, regular and offset 3D chevron patterns for cake decorating.While designed for fondant covered cakes, Onlays can be used on buttercream cakes provided the cake is thoroughly refrigerated prior to application. Apply the Onlay while the buttercream is firm and cold, using piping gel or edible glue.The design measures approximately 6-1/4 x 4 inches and allows for an alternating chevron pattern.