Solids Of Constant Width Sets- Large size Phone Stand 3/8 - 16 Washer Head

3/8 - 16 Washer Head Screw - High strength

Diameter: 1

Holds up to 6 lighters at a time

This item qualifies for a shipping cost refund when purchased with the complete kit

Solids Of Constant Width Sets- Large size Phone Stand 3/8 - 16 Washer HeadSet of Cones of constant width. This model is the large size. CNC machined in Canada out of brass or aluminum bar stock. Approximately 1. 75" in diameter. These are machine finished and light hand polishing is done. These are non spherical solids that amazingly have constant width in every directionallowing them to roll smoothly. They are derived from two dimensional curves that were put into use by the 19th century German engineer Franz Reuleaux.