Since 1965 Allen Sports has created top quality outdoor equipment for their consumers and this Allen Sports Dual Swivel Wheel Attachment for JTX1 Trailer is no exception. This dual-swivel attachment is uniquely built for providing a long lasting convertible wheel. It was made to easily roll a children s trailer which is recommended to use on the Allen Sports Child Trailer. This black dual-wheel attachment is conveniently flexible by converting it to a more stable push-and-pull movement or change it to have more swivel action. You can easily go for a walk or a jog anytime of the day with this versatile two-in-one swivel wheel trailer attachment. Installation is just a snap away by allowing anyone from a busy working parent to an active stay-at-home parent to quickly attach it.