Rods are 12 long.
Hollow Glass
Hard Rubber 6 long
Hard Rubber (Ebonite)
Solid Glass
Solid Plastic
Sealing Wax
Cotton
Silk
Wool
Rods are 12 long.
Hollow Glass
Hard Rubber 6 long
Hard Rubber (Ebonite)
Solid Glass
Solid Plastic
Sealing Wax
Cotton
Silk
Wool
