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Gem Bottle
Crystal Growing Balsam Fir
Moroccan Geode
Crystal Growing Seasons
0.36 lb
Dissect It Frog Super Lab
1.31 lb
Strange Attractor Thinking Putty
0.47 lb
Crystal Growing Maple Tree
0.12 lb
Super Magnetic Tidal Wave Thinking Putty
Structural Engineering: Bridges & Skyscrapers
2.4 lb
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