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Part of a Molecular Model kit Red Ball 2 Holes Holes at 90° from one another Pack of 10 Balls The red balls with 2 holes each (at 90° from one ano...

Pack of 10, Red Atoms 2 holes to build upon Extra component parts for use with Molecular Model kits Each atom measures 2.2cm (0.9") in diameter At...

REPLACEMENT || Spare part for use in molecular model kits measures 1.5" - Made of high quality plastic BOND || Demonstrates multi types of bonds ...