Automatic safety hook 4pcs suitcase

The set includes:
1 x carrying case
1 x user manual
1 x type plate
4 x automatic load hook
1 x radio controller
16 x 3.7 V 900mAh lithium ion batteries (for automatic hook)
3 x 1.5 V AAA long-life micro-batteries (for radio control)
1 x charger for lithium ion batteries