The Adult Pro-Jump CZ-Series Aluminium A-Frame features the following specifications... Suitable For - The Adult Pro-Jump CZ-Series Aluminium A-Frame is designed to fit the Adult Pro-Jump CZ EXO Pro Series bouncy stilts as a replacement part The difference between the two versions (V1 & V2) - There was a slight design change during the manufacturing lifetime of the CZ-Series aluminium A-frame which is noticeable when looking at the profile of the frame (one is more indented than the other when looking at the the left side of the photos on this listing). Both variants of this A-Frame will fit ANY CZ Exo PRO aluminium stilts. However we have kept them separate so that customers can match the A-Frame to the variant on their stilts - please compare the A-Frame on your stilts to the photos above. Compatible With - This part MAY also be compatible with other brands of Powerbocks (however we can not guarantee this) including PoweriZer, PowerStrider, Fly Jumper, Jolly Jumper, Air Trekker, Air Runner, Speed Jumper, PowerStrider, 7 League Boots, PowerSkip and PoweriSer. If you are unsure after checking the photos and description, the Pro-Jump Forum (search Google) may be able to advise if you post photos of your Jumping Stilts. Quantity Supplied - One Adult Pro-Jump CZ-Series Aluminium A-Frame is supplied Fittings not included