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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
KOYO: 624ZZ NSK: 624ZZ NMB: R-1340ZZ
Static Load Rating: 533 N
Dynamic load rating: 64148 N
Dimensions: 4mm x 10mm x 3mm/Metric
6003 Full Complement Ceramic Ball Bearing - Silicon Nitride (Si₃N₄)
Educational Wooden Roller Coaster Set - DIY Kit for Kids Outer Diameter - 33mm KOYO: 624ZZ NSK: 624ZZ NMB:Roller Coaster DIY Kit for Kids & Teens STEM Toy Brain Booster Perfect Gift Idea Unplug and spark imagination with this interactive Wooden Roller Coaster DIY Model Kit! Made from durable wood and packed with clever engineering, this hands on building set challenges kids and teens to create a working marble track from scratch. Type: Educational Wooden DIY Model Kit Materials: Natural wood, non toxic finish Activity Time: 1 2 hours of fun assembly Age
US$ 13.00
US$ 25.00
US$ 25.00
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US$ 25.00