HOLKIE Caster Wheels 5 inch with No Brake Stem Casters, 3/8" -16 x 1 (Stem Diameter 3/8", Stem Length 1") Threaded Swivel Casters Set of 4 Heavy Duty Castors Black Great White Batteries are included as well

Batteries are included as well as very easily replaceable

so there is no need to worry about the product corroding due to humid air

and cannot take pictures or record videos)

The monitor uses a single AA battery (included) and can be expected to last for up to 2

HOLKIE Caster Wheels 5 inch with No Brake Stem Casters, 3/8" -16 x 1 (Stem Diameter 3/8", Stem Length 1") Threaded Swivel Casters Set of 4 Heavy Duty Castors Black Great White Batteries are included as wellStable construction: Housing made of heavy duty steel for high load, the max capacity set of 4 wheels is up to 1000lbs. Screw rod specification: 5" without brakes Swivel Casters, 3 8" 16UNC x 1" (Stem Diameter 3 8", Stem Length 1") Threaded Stem Casters, Casters with No Noise Set of 4 Castors. Please measure the stem size of your old casters to avoid wrong buying. Smooth and silent: Double precision ball bearings and PVC wheels, these swivel casters