Consisting of a bulb and bulb holder, 3 sockets, 2 plane mirrors, convex lens(thick, thin, cylindrical), prism, a hole piece, single slit piece, three-slip piece, white screen, ground glass sheet, little candle and a rod (or log screw). all pieces are put in a plastic case with 9 locating holes, case size: 208mm×130mm×28mm

Science Teaching Kits School Lab Equipment Suppliers in India 

Ltekonline are the manufacturers of Primary Optical kit Science Teaching Kit used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Science Teaching Kits for Engineering Teaching Lab in Universities