This is a hot wire jig for making grooves in the brake sponge of a Mini 4WD car. A set of replacement nichrome wires is included so you can use it right away. Set Contents ・Hot wire jig body (2 AA batteries sold separately) ・Replacement nichrome wire x 2 (length 20mm, approx. 2cm) Features ・Entry model that beginners can use with confidence ・Simple design, easy to handle ・The tip is made of ABS and is heat resistant ・Comes with replacement wires for long-term use How to turn on the power ・Push the lever back to ON, forward to OFF How to replace ・Easy replacement, just unscrew and reattach the wire ・Always remove the batteries before working Cautions ・Wear gloves during operation ・The nichrome wire becomes hot during use ・Continuous use should be limited to 30 seconds to 1 minute Shipping method ・Shipped via Yu-Packet Post mini (anonymous shipping available)