Protection training gear for new player (Use for RC helicopter longer than 30cm)

Protection training gear for new player (Use for RC helicopter longer than 30cm)
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Protection training gear for new player (Use for RC helicopter longer than 30cm)
Features:
100% Brand New
This training kit is great for beginners
or experts who are trying out new helicopters or new set-ups.
It helps balances helicopter and it greatly prevents blades
or other expensive parts from tilting and hitting the ground
or any obstacles, thus saving costly damage.
By using the training kit, beginner learn how to safely land RC
helicopter with ease.
Specification:
Length:33cm
Ball diameter: 40mm
Packet content:
4 X training gear bars with balls installed at the end and held up by the fuel tubing
4 X skid clippers
1 X Center Hub