Children's toy science kits, toy chemistry sets containing chemical supplies and instructions, toy physics kits containing physical science experiment supplies and instructions, toy engineering kits containing supplies and instructions, sold as a unit; children's arts and craft sets containing supplies and instructions for making educational toys for developing skills, sold as a unit

'art':37 'chemic':10 'chemistri':7 'children':1,35 'contain':9,17,27,41 'craft':39 'develop':50 'educ':47 'engin':25 'experi':20 'instruct':13,23,30,44 'kit':5,16,26 'make':46 'physic':15,18 'scienc':4,19 'set':8,40 'skill':51 'sold':31,52 'suppli':11,21,28,42 'toy':3,6,14,24,48 'unit':34,55

LAB CRATE

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