Replacement Blades (shells) for all models of Fit Boots. If you crack one blade/shell it is due to our band stretched out and should’ve been replaced every 30-50 hrs. We highly recommended you replace band and all 4 blades/shells to keep you safe and your spine and body in proper alignment,
XS = weight of 70-100 lbs (#2 Band)
Soft = weight 100-135lbs( #2 Band)
Hard = weight 140-200lbs (#3 Band)
XH = weight 200-340 lbs (#3 Bands)
Note: If someone is weaker, has a knee injury, is older and more frail, or an ailment and they weigh less they may need to change a blade or band (possibly cut a spring). If someone if strong they also may need to go with the harder shells and #3 bands.
**Please contact us to help set up the proper boots for your bounce. Everyone is different and we are experts and here to help.
Our blades/ Shells are compatible with KJ and other rebound boots brands however, you need all 4 blades with our band. The other brands' shells won’t fit with our band and easy detachable bottom treads. Our Fit Boots are a custom and trademark design that offers more space for the band with our amazing bottom treads that are easily removable with no tools needed. You can simply remove KJ or other brands' entire bottom of the boot and replace it with our entire bottom to your boot.
Here is the Comparison to help you to replace and purchase the proper set up:
FBB-1 = KJ shell 8 FBB-2 = KJ shell 6 L FBB-3 = KJ shell 6 H FBB-4 = KJ shell 7 (Pro L, XL boots) Contact us if you have any further questions. Our Customer Experience Team is happy to assist you @bostonjumps@gmail.com