This high-tack, round-shaped, multi-sided adhesive yields instant placement on smooth and textured surfaces. It is repositionable and leaves no residue. Perfect for positioning Support Panels, Modeling Sheets and Road Risers. Each Spot is approximately 1/2" in diameter. Packaged in a convenient, pull-out dispenser. 100 pcs/package About Complete Terrain System The Terrain System includes all the products you need to model realistic terrain. These products all work together to make it easy to build any type of terrain for your layouts, displays and other projects. WARNING: CHOKING HAZARD - SMALL PARTS! NOT INTENDED FOR CHILDREN UNDER 3.