Alvin Jet-Bow Compass Set

Alvin Jet-Bow Compass Set
| 6" speed compass with inter-changeable pen, pencil and divider parts, replaceable needle points| 4 1/2" bow compass with inter-changeable pen, pencil, and divider parts| 6" beam bar and slide coupling for circles up to 28" in diameter| 6" friction divider with self centering gear head and replaceable needle points| Mechanical lead holder| Slip handle for spare ruling pen| Lead pointer, center tack and screw driver |Packaged in see-through, hard plastic case