Item:Atomic And Molecular Structure Model Size: 23x17x3.5cmMaterial: PP (atom)、 LDPE (linkage)、 ABS (box)Material: PP (atom)、 LDPE (linkage)、 ABS (box);Specifications: a hydrogen atom diameter 17mm、 other atomic diameter 23mm;Name Number(holes) Colour Quantity diameter(mm)H 1 white 30 17 C 4 black 15 23 O 2 red 10 23N 3 (angular)sky blue 4 23S 6 Yellow 4 23P 5 light purple 5 23F 1 Orange 2 23CL 1 green 8 23Br 5 deep blue 2 23I 5 purple 2 23Metal 3 silver 2 23boron 6 silver 2 23 Gray button 60Gray long key 25Transparent monolithic key 60Milk and white two-piece key 5On key sheet 8ABS plastic box 1Packaging Detail: 1 x Atomic molecular model