Little Labs Boats and Buoyancy Tooth design allows for a

Tooth design allows for a more aggressive cut and holds more chips

Various sizes of 2" to 8"

Safely growing seeds that have been exposed to various levels of ionizing radiation

Constant voltage or constant current operation

Clear glass lid to enable easy viewing of the watches inside

Little Labs Boats and Buoyancy Tooth design allows for aLearn why some things float while others don't Learn what buoyancy means Learn how propellers and sails work Original best selling series Little Labs Learn why some things float while others do not, what buoyancy means, and how propellers and sails work by building different boats and watercraft. 16 page color guidebook. Product Dimensions (L x W x H): 201 x 3. 1 x 61 inches Product Weight: 1 LB