1. 2pcs AAA size batteries
2: Size: 1.3cm(D)*11cm(L)
3.Pupil gauge on side
4.imprinted logo, Diagnostic lamp penlight

Diagnostic lamp

2pcs AAA size batteries included
2.2V 0.3A crystal bulb
Size: 1.3cm(D)*11cm(L)

promotional custom imprinted logo