[A part that is useful for setting up your machine and improving its performance] This is an aluminum wheel hub that can be used in place of the standard B5 part. The lightweight and strong aluminum hub also improves the accuracy of wheel installation. In addition. the clamp type is used to prevent the hub from falling off. The vivid blue anodized color is also effective for dressing up your car. It can be attached to Hornet. Mighty Frog. Lunch Box. Monster Beetle. Grasshopper. Super Storm Dragon. and Attack Buggy.

[Basic specifications] Made of machined aluminum with blue anodized finish

[Manufacturer page]
https://www.tamiya.com/japan/products/22043/index.html