What's in the box? This Molecular Model Kit has a total of 306 pieces including a link remover. All parts are made of durable and sturdy plastic which are color coded to national standards. This molecular model kit will help teachers and parents to cultivate children's interest in chemistry. Better to understand. kinds will find it helpful in studying molecular geometry. A great hands-on way to learn! Specifications: Material: PP (atomic), LDPE (link), ABS (box) Plastic box: 23.88 × 16.76 × 6.86 cm / 9.4 x 6.6 x 2.7 inch Color: Different atoms, different colors Weight: Including box total 0.8 kgPackage included: ? Tetrahedral carbon atoms - black (30) ? Trigonal bipyramidal carbon atoms - black (8) ? Linear carbon atoms - black (2) ? Trigonal carbon atoms - black (6) ? Divalent oxygen atoms - red (14)? Monovalent hydrogen atoms - white (45) ? Tetrahedral nitrogen atoms - blue (4) ? Sulfur divalent atom - yellow (1) ? Tetrahedral atom - yellow (1) ? Tetrahedral phosphorus atoms - purple (4) ? Monovalent chlorine atoms - green (8) ? Octahedral atoms - grey (2) ? Divalent atom - grey (1) ? Pi orbitals - purple (6) ? Pi orbitals - pink (6) ? P orbitals - purple (6) ? P orbitals - pink (6) ? P orbitals - beige (6)? Short bonds - grey (60) ? Long bonds - grey (30) ? Short bonds - white (60) ? Links removal tool - cream (1) ? Plastic box - grey (1) Dear customer, As a result of the supplier's mistake, we did not place the product manual in our first sale items. We corrected the mistake in time. Now, the product 100% is accompanied by a instruction manual.