YoYo Factory Velocity Yo Yo Assorted (1) Wide Track This is the Sds HO MA35599 This is the Sds HO Victorian Railways Vpfx Vline Bulk Flour Wagons Pack A (3) FeaturesPrecisely manufactured for an excellent fit – Black anodized finish with etched ARRMA logo for cool looks – Constructed from high quality light weight aluminum – Multi fin design increases surface area for efficient heat transfer – Flat area allows the mounting of aftermarket fans for additional cooling Specifically designed for the ARRMA 4X4Includes1 x Motor Heatsink THE yo yo of the 21st century: the YoYoFactory Velocity yoyo is the first yo yo of its kind you can throw the yo yo and tug it back to your hand with ease