Material: Plastic+Metal

Size: 
A-0.6x1.2CM (0.23x0.47 inch)
B-0.7x1.6 (0.27x0.62 inch)
C-0.7x2.1CM (0.27x0.82 inch)
D-0.8x2.2CM (0.31x0.86 inch)

Package included:
10PC*Lamps
1PC*Empty battery box