The Small Cylinders Block (A021-2), measuring 4.8 by 5.8 by 24 centimeters, is a compact cylinder block designed to support early sensorial work with size gradation and the development of the pincer grip through the knobbed cylinder sockets. Its smaller dimensions make it a practical option for environments with limited shelf space or for use as a supplementary set alongside your primary cylinder blocks. This is a dependable, hands-on material for the 2.5–4 range as children develop the visual and muscular discrimination central to the sensorial curriculum.