• Rc helicopter training kit gear-- color: mainly blue. material: hard carbon fiber, plastic and sponge.
• Training kit helicopter-- lightweight sponge balls with strong carbon fiber training rods. floating holder
• Rc helicopter prop -- landing training gear--- simple and practical design, easy to install and use.
• Landing training kit-- blue lightweight sponge balls with carbon fiber training rods.
• Training kits-- simple and practical design, easy to install and use.