Double Sided Mounting Tape with an aggressive pressure sensitive permanent adhesive on both sides. Package contains an assortment of three (3) thicknesses; 1/16", 1/8", and 1/4". This tape can be used in place of mechanical fasteners to mount relays, siren drivers, and many other devices to various surfaces. It is flexible and conforms to irregular surfaces.Features:? Aggressive Permanent Adhesive? Closed Cell Foam? Flexible, Conforms To Irregular Surfaces? Hundreds Of Uses And Applications? Ideal For Mounting Circuit Boards? Assortment of Thicknesses? Handy Reusable Poly Storage BoxSpecifications:? 156 Pre-cut Pieces? Individual Piece Size: 1/2" x 1-1/2"? Thickness (52 pieces of each): 1/16", 1/8", 1/4"