Slider 
Kessler
product Support Slider Kessler /product-images/support/kessler-cineslider-head-legs-1m-kit.jpg /product/kessler-cineslider-head-legs-1m-kit/ $89 Support
You might also need
Tripod Head 
Manfrotto
Manfrotto 502HD Pro Video Head with Flat Base
Tripods 
Manfrotto
Manfrotto 055XPRO3 Tripod
Slider 
Kessler
Kessler Cineslider + Head + Legs 1.5m Kit
Slider 
MYT Works
MYT Works MYT Large Underslung Camera Mounting Kit
Slider 
MYT Works