You get 20 small tubes and 10 large tubes. Large tubes measure 6" in length.
Tinkering Toolbox Craft Tubes Pack at Lakeshore Learning
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You get 100 durable plastic gears. Each gear measures 1 1/8 in diameter.
Tinkering Toolbox Gears Pack
You get a set of 100 small and 100 large tubes, plus 2 pieces of flexible PVC tubing. PVC tubing measures 2 m long.
Maker Space Plastic Tubing Pack
Tinkering Toolbox Craft Boxes Pack at Lakeshore Learning
Tinkering Toolbox Craft Tubes Pack at Lakeshore Learning