Spare Lamp House for Optical Bench Material_Borosilicate Glass the longer body extending the

the longer body extending the working face wide enough that iron-filing patterns are visible from the back of the room

this 2-pack of 20oz Griffin-shape borosilicate beakers adds a pouring spout for everyday home use

each fitted with 98 iron-rod plotting compasses in a 14 x 7 matrix that align with field lines whenever a magnet is brought near

these plastic forceps provide precision grip for specimen manipulation without damaging delicate tissues or structures

Spare Lamp House for Optical Bench Material_Borosilicate Glass the longer body extending theLamp house assembly dimensioned as the matched replacement unit for optical bench and light source apparatus when the original housing reaches end of life.