Solids Of Constant Width - Triangle - Set of 3 Phone Stand Slot is a 1" wide

Slot is a 1" wide and will accommodate most phone cases

28 - Oil impregnated bronze bushings (6732271)

All items are proudly made in Canada using North American materials whenever possible

This model is made from Air Craft Aluminum allowing us to sell and ship at a lower cost with no affect on function

Solids Of Constant Width - Triangle - Set of 3 Phone Stand Slot is a 1" wideSet of three Cones of constant width. This model is based on a Triangle. CNC machined in Canada out of brass or aluminum bar stock. Approximately 1" 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