ImpressionU Acrylic Clear Stamp Block - Set of 2pc - Small (2in Square) & Large (4in Square) - 0.4inch Thick Ideal for clear stamps mounting. Made from sturdy acrylic. Easy to clean. 1 Set contains of 2pc acrylic blocks. Small one is 2in*2in*0.4in; Large one is 4in*4in*0.4in.