Laboware is presenting the product best in quality, Atomic Model Sets subsist of molded balls of different colors and sizes along with connecting lugs of different sizes. These sets are very accommodating in modeling different organic & inorganic compounds. Senior set: this set subsists of 185 lugs & 370 balls of prescribed colors & sizes packed in a molded box having separate space for every Particular color & size of ball. Junior set: this set subsists of 37 connecting lugs & 75 balls of different colors & sizes packed in a molded box.