Feature:<br/> This molecular model kit will help teachers and parents to cultivate children's interest in chemistry. <br/> Better to understand. kinds will find it helpful in studying molecular geometry. <br/> A great hands-on way to learn! <br/><br/> Specification:<br/> Material: PP (atomic), LDPE (link), ABS (box)<br/> Size: Hydrogen / Halogen diameter: 17 mm <br/> Other atoms diameter: 23 mm <br/> Plastic box: 23.5×17×3.5cm / 9.25×6.69×1.38inch<br/> Color: Different atoms, different colors<br/> Weight: Including box total 0.43 kg<br/><br/>Package included:<br/> Atoms - Holes(Angel) - Color - Dia.(mm) - Qty.<br/> ★ H-Hydrogen - 1- White - 17mm - 20<br/>★ Halogen - 1 - Green - 17mm - 6<br/>★ C-Carbon - 4(109°28) - Black - 23mm - 23<br/> ★ N-Nitrogen - 3(107°) - Blue - 23mm - 2<br/> ★ S-Sulphur etc. - 2(105°) - Yellow - 23mm - 1<br/> ★ O-Oxygen - 2(105°) - Red - 23mm - 7<br/><br/> Links - Color - Length(mm) - Qty.<br/> ★ Medium (single, rigid) - Grey white - 27mm - 26<br/> ★ Long (double/triple, flexible) - Grey - 43mm - 10<br/> ★ Short for space-filling models - White -11mm - 26<br/> ★ABS plastic box - 1 <br/><br/>Dear customers, <br/> Because the parts are assembled manually, there Maybe missing parts. <br/> In this case, please contact us in time, we will Reissue you for missing items as soon as possible.<br/> As a seller, I hoping to get your understanding and support. <br/> I will be sure to provide you with the most satisfying shopping experience.<br/>