This Bundle Contains: 1 Tacx Galaxia Indoor Retractable Bicycle Rollers + 1 Signature Series Resistance BandGarmin Tacx GalaxiaTake your training indoors with the Tacx Galaxia roller. Featuring a patented swing system, this advanced roller can absorb your forward and backward accelerations, so you can ride hard while staying firmly in place. The Galaxia relies on a swing system that ensures the rollers can swing forward and backward. When you start to sprint, switch pace or stand on the pedals, the system absorbs the sudden movement, so you don’t derail.Signature Series Training Resistance Band78 Inches Long, 2 Inches Wide. Compared with normal-sized bands, our fabric resistance bands' length is more suitable and flexible so it can help you more effectively achieve full-body extension and enhance exercise. You can fold for more tension, tie a knot for a loop band or take a couple wraps around your hands for a secure grip.