This set includes 6 wooden stamps with detailed, 3D rubber imprints of base 10 blocks: 2 unit stamps, 2 rod stamps, 1 flat stamp and 1 cube stamp. Base 10 blocks visually represent ones, tens, hundreds and thousands and can be applied to the teaching of place value. Base 10 activities also teach number concepts, fractions and volume. These stamps assist in worksheets, flashcards and group activities. The stamps are labelled for easy identification. These wooden stamps have plastic handles so they are easy for children to hold and manipulate. For ages 3+. Size of unit stamped image: 0.4"L x 0.4"W. Size of unit stamp: 0.7"L x 0.6"W x 2.1"H. Size of cube stamped image: 2.6"L x 2.6"W. Sizes of cube stamp: 2.75"L x 2.6"W x 2.25"H.