This is a pair of Female Star Plugs from Hobbico.
Features:
Compatible with the most common polarized plug in RC
Plug body and rear cap molded from strong heat and impact resistant
polymer
Rear caps include a center isolator that prevent terminals from
shorting
Male plug has gold plated terminals
Female plug has nickel plated terminals
Stainless steel spring on male plug for tight connections even
after hundreds of uses
Unique design eliminates heat shrink tubing for neater installations
Includes:
Two Female Star Plugs
Requires:
Soldering wires to terminals
Specifications:
Dimensions: 0.61 x 0.30 x 0.73 in (15.42 x 7.67 x 18.5mm)
Weight: 0.08oz (2.4g)
Contacts: Nickel-plated copper
Maximum Wire Gauge: 12AWG (with rear cap installed)
10AWG (without rear cap)