This is the same Adhesive/Foam combination we use for all our grip tape! The 3M adhesive backing is EXTREMLY sticky! Even though its insanely sticky it leaves virtually ZERO residue! The adhesive is applied to one side of the foam. This foam is a great way to soften up hard edges on your board, cushioning for "Control Freaks", or a DIY grip tape project. Available in 2mm & 4mm thickness.