The Molymod® Molecular Model Set manufactured by Spiring Enterprises Ltd. contains: 38 Black carbon atom parts: 24 tetrahedral, 6 trigonal bipyramidal, 6 trigonal, 2 two-hole linear 12 Red two-hole angular oxygen atom parts 40 White single-hole hydrogen atom parts 4 Blue tetrahedral nitrogen atom parts 2 Yellow sulfur atom parts: 1 tetrahedral, 1 octahedral 4 Purple tetrahedral phosphorus atom parts 8 Green single-hole halogen atom parts 3 Grey metal atom parts: 2 single-hole, 1 two-hole angular 18 Lone pair 2D paddles: 6 pink, 6 purple, 6 beige 55 Medium-length 19mm grey links 25 Flexible long 30mm grey links 60 Short 2mm white links Link remover tool Storage box Instructions