The IDEM Smile Five Mast Stacker is an educational toy for children aged 2+, designed to develop fine motor skills and visual perception. It features a plastic base with five masts, 25 colorful plastic shapes, and 10 double-sided work cards. Young learners start by placing shapes on the masts, and from age 4, they can follow card patterns to enhance concentration, instruction-following, and perceptual skills. This set prepares kids for mathematical concepts like shape recognition and sequencing through engaging, hands-on play.