Learning Advantage Pattern Block Activity Cards Two levels of difficulty make these pattern block cards perfect for children aged 3-8. These Pattern Block Activity Cards are ideal for matching, color and shape recognition, fine motor, spatial awareness, early STEM and patterning skills!The set includes 20 durable 8. 5? x 11? cards printed on sturdy card stock in a resealable bag. Perfectly sized for our Wood and Plastic Pattern Blocks Pattern blocks sold separately. Our Wood or Plastic Pattern Blocks are the perfect size for these cards.Please visit our pattern block pages by searching for "Learning Advantage pattern blocks" to complete this activity set.