Decorate DIY projects or create math activities with 3D Geometric Shape Stamps! This set includes 13 wooden stamps with detailed rubber imprints of 3D geometric shapes: circle, oval, rectangle, square, kite, rhombus, octagon, pentagon, hexagon, quadrilateral, trapezoid and 4 triangles (equilateral, right angle, isosceles and scalene). Use them to decorate scrapbooks or albums! Or create volume, area, perimeter and attributes activites. These chunky, wooden stamps are easy for children to use. As children stamp, they will develop fine motor skills, hand-eye coordination an imagination. These stamps can be cleaned with warm soap and water, which makes them an ideal home or classroom accessory! || Size of square pyramid stamp: 1.4"L x 1"W x 0.9"H. || Size of cylinder stamp: 3"L x 1.4"W x 0.9"H.