Will this fit a Jolly Jumper capsule?

Hi Holly, Thank you for your enquiry. The Snap N Go LX is compatable with all Baby Trend and most major brands of infant car seats like Graco and Evenflo. Unfortunately as we are not stockists of the Jolly Jumper Capsule, we would need to test this in store for you. If you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder where you can find contact details for your nearest Baby On The Move Store. Here, one of our expert Car Restraint Technicians can assist in helping you to find the travel system for you and your child. We hope this has helped with your query.