This set includes 244 pieces of durable and fine quality plastic components:ATOM                  COLOR        SIZE      QUANTITYC (3 prongs)         Black          9mm      3C (4 prongs)         Black          9mm      13C (5 prongs)         Black          9mm      3H (1 prong)          White         9mm      30O (2 prongs)         Red           9mm      10N (3 prongs)         Blue           9mm      2N (4 prongs)         Blue           9mm      2CL (1 prong)         Green         9mm      6CL (6 prong)         Green         9mm      2P (4 prongs)         Brown         9mm      3P (5 prongs)         Brown         9mm      2F (1 prong)           Orange       9mm      2Br (5 prongs)        Dark blue   9mm      2I (5 prongs)          Lavender    9mm      2S (4 prongs)         Yellow        9mm      4S (6 prongs)         Yellow        9mm      2Metal (1 prong)     Silver         9mm      2Metal (2 prongs)   Silver          9mm     2Metal (6 prongs)   Silver          9mm     2Short Bond          Transparent  20mm   60Medium Bond       Transparent  25mm   60Long Bond           Transparent  38mm   30(A brief Instruction Guide will be forwarded to buyer email account)