This set is one bullet with 1 sleeve 
Material: Silicone + ABS
Function: one vibration mode
Feature: Waterproof, Phthalate Free
Size: 5.66"*1.49"*1.10inches, 4.17*1.14*1.02inches
Motor quantity: 1 motor
Battery: 1*N Battery inc.
Color: Pink with Gold Bullet 
Sound: Less than 45 dB